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diff --git a/old/68406-0.txt b/old/68406-0.txt deleted file mode 100644 index 676259d..0000000 --- a/old/68406-0.txt +++ /dev/null @@ -1,1626 +0,0 @@ -The Project Gutenberg eBook of Essay on the effects of iodine on the -human constitution, by W. Gairdner - -This eBook is for the use of anyone anywhere in the United States and -most other parts of the world at no cost and with almost no restrictions -whatsoever. You may copy it, give it away or re-use it under the terms -of the Project Gutenberg License included with this eBook or online at -www.gutenberg.org. If you are not located in the United States, you -will have to check the laws of the country where you are located before -using this eBook. - -Title: Essay on the effects of iodine on the human constitution - With practical observation on its use in the cure of bronchocele, - scrophula, and the tuberculous diseases of the chest and abdomen - -Author: W. Gairdner - -Release Date: June 25, 2022 [eBook #68406] - -Language: English - -Produced by: The Online Distributed Proofreading Team at - https://www.pgdp.net (This file was produced from images - generously made available by The Internet Archive) - -*** START OF THE PROJECT GUTENBERG EBOOK ESSAY ON THE EFFECTS OF -IODINE ON THE HUMAN CONSTITUTION *** - - Transcriber’s Notes - -Obvious typographical errors have been silently corrected. All other -spelling and punctuation remains unchanged. - -Italics are represented thus _italic_. - - - - - ESSAY - - ON - - THE EFFECTS OF IODINE, - - ETC. ETC. - - - - - LONDON: - PRINTED BY JAMES MOYES, GREVILLE STREET. - - - - - ESSAY - - ON - - THE EFFECTS OF IODINE - - ON - - THE HUMAN CONSTITUTION; - - WITH - - PRACTICAL OBSERVATIONS - - ON ITS USE IN THE CURE OF - - BRONCHOCELE, SCROPHULA, AND THE TUBERCULOUS - DISEASES OF THE CHEST AND ABDOMEN. - - BY W. GAIRDNER, M. D. - - LONDON: - PRINTED FOR THOMAS AND GEORGE UNDERWOOD, - 32, FLEET STREET. - - 1824. - - - - - INTRODUCTION. - - -The medicine which forms the subject of the following treatise has been -so lately introduced into practice, that few Physicians are acquainted -either with its properties, or with the manner of using it. Almost all -have heard of its effects in discussing bronchocele; and some, rashly -presuming that it cannot be a drug of great power, have prescribed it -without giving themselves the trouble of making any inquiry into the -manner of employing it, or the dangers to which its use is liable. -I have thus seen more than one Physician seriously injured in his -reputation; and I have seen many patients irrecoverably injured in -their health by this subtle and powerful medicine. - -Not long since I was informed by a Physician, of great and deserved -eminence, in London, that he had prescribed it to the extent of ten -grains at one dose to a young woman. Most fortunately she was saved by -vomiting. About a year ago, I was consulted on account of a young lady -in the last stage of tubercular pulmonary consumption. She was attended -by a Surgeon, who had bled her to a most unaccountable degree. This -gentleman proposed to me the use of digitalis, which being objected -to, he then proposed successively the use of hemlock and iodine. It -was plain that he was about as well acquainted with the virtues of -one medicine as with those of the other, and not better versed in -the history of the disease he was treating. When a medicine of so -much power is thus in the hands of every person, I trust I shall not -stand in need of apology for having made public the following little -treatise. Its materials have been for some time in my possession; and -I was desirous of delaying yet a little the publication of them; but -certain statements have gone forth to the world, of the great benefits -to be derived from the use of iodine, while the history of its dangers -has been most unaccountably withheld. It is in order to fill up this -hiatus, and at the same time to direct particularly the attention of -Practitioners to the proper manner of using it, with a view to its good -effects, that this essay is written. - -Particular circumstances have afforded me opportunities of seeing this -medicine extensively used; and at the same time of witnessing the -bad effects which resulted from the prodigal manner in which it was -first employed. I have also made inquiries respecting its history in -countries which I have not visited. The answers I have received have -not been so detailed and satisfactory as I could have wished: they -have all, however, more or less confirmed the observations I have made -myself, or which have been communicated to me from different parts of -Switzerland and France. - -Some persons may, perhaps, desire to see a daily report of the -different cases to which allusion is made in the following pages; but -this would not have been consistent with my plan, which is rather at -the present time to present an essay than a treatise to the public. - - Bolton Street, Piccadilly, 4th Dec. 1823. - - - - - ESSAY - - ON THE - - EFFECTS OF IODINE. - - -The discovery of specific remedies has always, and most justly, been -considered one of the most important benefits to be conferred on the -practice of medicine. Much dispute has been carried on respecting -their nature, but all are agreed about their existence. They have been -defined by Dr. Young to be medicines which cure diseases, “without any -perceptible connexion between the immediate effect and the benefit -obtained.” While their operation is thus obscure, the mode of their -employment, and their peculiar virtues, must be subjects of much doubt -and uncertainty; while the accidents to which they are liable, in -common with other medicines, must occasion great embarrassment and -perplexity. But from the moment their modus operandi can be connected -with any known general law of the constitution, a great part of these -doubts disappear, a light is afforded for directing their good effects, -and a clew is obtained for tracing their injurious properties, and -applying the necessary antidote. The medical history of iodine will -fully exemplify the above observations. - -This medicine was first introduced into practice by Dr. Coindet of -Geneva. Whilst making researches for other purposes, he found that the -fucus vesiculosus had been recommended by Russel in the cure of goitre. -From this plant, and other species of the same family, the soda, -with which iodine is generally found combined, is extracted. As the -sponge, whose virtues have long been established by certain experience -at Geneva,[1] is also a maritime plant, Dr. Coindet suspected that -iodine might be the active principle of them both; and by this analogy -he was first led to employ it in the cure of bronchocele. The success -which attended its use in the first instance was very remarkable; -and it seems to have been exhibited cautiously and warily, for some -considerable time had elapsed before the alarm was given of its noxious -effects. - - [1] The total inefficacy of this medicine in the hands of - British Practitioners, while its virtues are so palpable and - evident at Geneva, that not only Physicians, but also the - inhabitants in general, are convinced of their reality, had - always surprised me. I was at a loss to account for testimony - so contradictory. It seemed as if medicine were a science so - uncertain and futile, that its plainest facts depend more on - the authority of name than on the substantial evidence of - observation and experiment. I lately obtained an explanation - of this difficulty from a quarter in which I can place - implicit reliance. It seems that the chemists are much in the - habit of substituting charcoal for burnt sponge, of which an - undeniable proof is the fact, that burnt sponge is sold at - an inferior rate to the same article before it has undergone - the process of combustion.—I may also be allowed to state in - this place, that I have sent prescriptions for the hydriodate - of potass to several chemists in London—that my prescriptions - were said to have been made up; but that a few days - afterwards, when I called at their shops, in order to examine - the medicine, I discovered that they were not even aware of - the existence of such a drug. If such frauds continue to be - committed with impunity, the sick had better submit patiently - to their pains, than have recourse to physicians, whose - science is rendered unavailing for the profit of tradesmen. - -It may easily be imagined, with what joy the discovery of a certain -remedy for bronchocele was received in a place where that disease is -extremely common. Many used it, and many were delivered from their -unseemly and most inconvenient malady. But this state of things was -not of long duration. Familiarity with the remedy begat too great -liberality in its use, the effects of which were speedily apparent. - -Iodine was then looked upon as a specific remedy for goitre. Its effect -upon the system was little known and little attended to. No person -seems even to have considered how it produced its astonishing results. -Its efficacy, however, in the cure of goitre, was soon generally -recognised. Its reputation flew over the city and neighbourhood of -Geneva, and it was taken with the utmost levity, with and without -medical advice. Dr. Coindet justly deplores this abuse, which was the -cause of the unmerited discredit into which the remedy afterwards fell. -When it had been used for some time in this manner, its pernicious -effects began to show themselves; several persons paid for their -temerity with their lives, and many were irreparably injured in their -health. Every day brought to light some new catastrophe, the effect of -iodine; and in the course of a short time its name was associated with -the idea of a most intractable and virulent poison. Neither patient nor -physician dared venture on its employment. It seemed to be one of those -benefits held up to invite the appetite, while its use was denied us. - -These melancholy consequences of its indiscriminate and lavish -employment, show that iodine is a medicine of great power, and teach -the necessity of watching and studying its operation. Nothing can -assist us more in forming an accurate estimate of its virtues than a -careful observation of the bad effects which flow from its abuse; and -we shall now, therefore, proceed to consider them in detail. - - * * * * * - -Some time after the introduction of iodine into practice, a few cases -of severe spasmodic affection of the stomach and bowels occurred. -They were attended with violent and incessant vomiting, excruciating -pain of stomach and bowels, strong spasms of the back and legs. The -tongue was commonly furred, and the bowels sometimes violently purged, -at other times obstinately constipated. The pulse was generally -extremely frequent, small and depressed—the eyes sunk and hollow—the -countenance ghastly and pale. These accidents were usually imputed by -the patients to the iodine they had taken. The Physicians by whose -advice the medicine had been given, would not allow this origin of -the disease, till a repetition of similar cases determined that the -sufferers were right. The vomiting, pain of the bowels, and the cramps -of the legs, are extremely severe. They are also with the greatest -difficulty allayed, continuing sometimes for many days, and renewed -during weeks, and even months, after taking food. The legs sometimes -swell in the first instance, and afterwards become rapidly thin and -meagre. There is another symptom, which, though common to almost all -diseases, is peculiarly the sign of this. The emaciation which attends -this irregular action of iodine is so rapid and so extreme as to strike -terror into the minds both of patients and physician. A magistrate of -Geneva, high in office, robust, corpulent, and of an athletic form, -was so much reduced in flesh, that he was not known by his oldest -acquaintances. I have seen emaciation, in one case, proceed to such -an extent in a short time as is almost incredible. A young English -lady, at a boarding-school, at Paris, had for some time been afflicted -with goitre. Her brother was prosecuting the study of medicine there. -With the characteristic zeal of a young man, as soon as he heard of -the wonderful effects of iodine, he determined on making trial of its -powers on his sister. He did not find much difficulty in persuading her -to become the subject of his experiments, nor did he encounter more -difficulty on the part of the French gouvernante to whose care she -was confided. The remedy succeeded, as usual, in greatly diminishing -the tumour; and for some time no bad effects were apparent. A small -hard knot only remained in the situation which had been occupied by -a considerable swelling before; and the desire to get rid of this -little tumour was the cause of the remedy having been pushed too far. -Its deleterious effects first showed themselves by gnawing pain at -the upper part of the stomach, great anxiety, and oppression. These -symptoms were disregarded, and the remedy was persevered in for a week -longer, during which time the patient became very much emaciated; she -was frequently affected with vomiting, the pain of the abdomen became -more frequent and more severe, and the thirst was very distressing. -I was sent for early in the morning, in consequence of an alarming -diarrhœa, which had come on during the night, and I found her in a -deplorable condition indeed. Her brother, and the mistress of the -boarding-school, were so alarmed at the consequences of their conduct, -that they were quite unfit to give any advice about her treatment; they -could hardly indeed give me a coherent account of what had passed; and -the poor young lady was therefore entrusted to the care of servants. -She was then suffering the most excruciating pain at stomach, violent -cramps, and convulsive action of the muscles of the arms, back, and -legs, from which she had scarcely any intermission. The vomiting and -purging were almost incessant. The dejections were bloody, slimy, and -very scanty, but at first had been copious and feculent. The matter -vomited was of a dark green colour, streaked with blood. The tongue was -loaded with a thick crust, resembling in colour the matter vomited. The -countenance was pale, contracted, and with that peculiar expression -which announces abdominal suffering. The pulse was small, hard, and -frequent, scarcely indeed to be numbered. The whole appearance of -the patient was such as to excite well-grounded fears for her life. -Being quite unable to swallow, four grains of opium were directed to -be thrown into the rectum. They were not, however, long retained, and -were not productive of benefit. An anodyne embrocation was therefore -applied to the pit of the stomach, fomentations to the feet; and, as -soon as it could be got ready, she was placed in a warm bath. This so -much quieted the irritation of the stomach, that she was enabled to -swallow about thirty drops of laudanum, from which there was a decided -alleviation of her sufferings for nearly an hour. During ten days she -remained in a very doubtful state, subject to frequent severe attacks -of diarrhœa, with intense pain of the bowels. Her emaciation during -this time was most extraordinary. The expression of her French nurse, -“_décharnée_,” was literally applicable to her; her arms and body were -almost fleshless—her breasts, which had been large, were now perfectly -flat—the calves of her legs had quite disappeared—and her thighs were -not much thicker than her wrists, when in health. I never witnessed any -thing like such extenuation in so short a space of time. By the steady -and very liberal use of opium, she recovered to a certain degree; -but when I last saw her, many months after her illness, she remained -subject to frequent violent spasms of the stomach, during which opium -alone gave her relief. Her nervous system had been much shattered. She -repeatedly declared to me that she seldom enjoyed an hour’s respite -from the most wretched depression of spirits, and since her illness -had never felt any thing like her former buoyancy of mind. The few -moments of ease she knew were purchased by large doses of laudanum, to -the habitual use of which her sufferings had forced her. She was still -very pale, and her emaciation, though much less, was yet very great. -She was indeed a miserable monument of the effect of iodine. I heard -of this young lady a few weeks ago; she was then much better, had in a -great degree recovered her looks, and was able to leave off the use of -opium almost entirely. Her stomach, however, still remained very weak, -and obliged her to be very careful of her diet. The bronchocele had not -returned; but the small hard swelling mentioned above remained still -very sensible to the touch, but not evident to the eye. - - * * * * * - -These are the outlines of a very severe case. I trust that such a one -is not likely to occur soon again. But if practice so daring as I have -more than once witnessed in London be repeated, we may very soon see -even worse accidents than the above. These statements, however, are -important, inasmuch as they demonstrate that iodine is not merely a -medicine of specific power against bronchocele, but that it dissipates -this disease, by virtue of its very important action on the whole -absorbent system. I shall take further notice of this property in a -future part of my paper. - -There is an effect of iodine to which I have alluded in the case just -quoted, but which is so extremely common, when the remedy has been -pushed to an overdose, that it deserves to be noticed at greater -length. The anxiety and depression of spirits are so great and -persevering as to warrant my considering them as the peculiar effect -of iodine, and not the consequence of the great debility which attends -the violent and inordinate action of this medicine on the constitution. -It is an affection very different from hypochondriacal melancholy, -inasmuch as it dwells principally on the present and has no reference -to the future. Patients have generally described it to me as a sense -of sinking and faintness, which were peculiarly oppressive, and I have -heard them complain of it while suffering the most intense pain, as the -part of the complaint which was yet the most difficult to bear. This -symptom is an almost constant attendant on the violent action of iodine -on the system, and frequently makes its appearance in a lesser degree -when the medicine acts in a kind and salutary manner. - -We have now to notice the effect of iodine on the nervous and muscular -systems, and this is by far the most interesting part of our paper. -It is that also on which the greatest degree of doubt and uncertainty -rests. - -The nervous and muscular systems are peculiarly exposed to the -irregular action of this medicine. In certain persons, indeed, of -peculiar habits of body, it cannot be exhibited so as to affect the -constitution in any manner, without in some shape or other producing -unpleasant nervous symptoms, such as dimness of vision, indistinct -hearing, fallacious touch, insomnia, breathlessness, palpitation, and -all the countless forms of inward nervous derangement. But the symptom -to which we shall more peculiarly confine our attention, is a degree -of tremor which generally comes on when the patient is under the full -constitutional influence of iodine. This symptom may be reckoned a -good gauge of the degree of nervous excitement which has taken place, -and it is seldom or never absent when that excitement has proceeded to -any considerable degree. It generally begins by a slight trembling of -the hands, resembling that which takes place from the poison of lead; -and if the medicine be incautiously continued, the larger muscles of -the arms, legs, and back become affected. When in this state, the -patient can with difficulty walk, and his progression is a tottering -uncertain motion. He cannot carry any thing straight to his mouth, but -the hand moves in a zig-zag manner, and with difficulty arrives at the -mouth at last. This complaint is generally attended with a hurried -circulation, and a small thready pulse. There is commonly great -suffering at stomach and confined bowels.[2] When nervous affection -first appears the medicine must be most diligently watched, and if -the symptoms seem to increase, its use should be instantly put a stop -to. If rashly persevered in, the symptoms I have described above will -certainly be excited, and then it is vain to withdraw the medicine; -the complaint goes on progressive for weeks and months, even though -its exciting cause be abstracted; and when it does at last begin to -diminish, the amendment is so slow and gradual that the patient is -scarcely conscious of the relief he receives. I saw two cases of this -kind with Dr. Peschier of Geneva, in which the patients had suffered -more than twelve months, and yet their sufferings had undergone little -mitigation. It is of some importance not to provoke a complaint with -so much difficulty allayed; and no one who has not seen it can have an -idea of the slow and imperceptible degrees by which it steals on the -patient. Its first advances generally escape his observation as well as -that of his physician. A slight trembling of the fingers, quivering of -the eye-lids, occasional subsultus of the tendons of the fingers, arms, -and legs, are generally the first symptoms observed, and it behoves -us to be constantly on the watch for them. I have always obliged my -patients to raise an empty glass or any light object to the head. -By this means the smallest degree of unsteadiness in the hand will -commonly be detected. I recommend a light object to be used for this -purpose, because a heavy one tends to give steadiness to the muscles -and to disguise the complaint. - - [2] I have seen in one case a most obstinate suppression of - urine. I merely mention the fact, as I have no reason to - believe it to be a common effect of the use of iodine. - -This effect of iodine is frequently complicated with the choleric -complaint I have already described; but it is evident that their -proximate cause is different, since they also exist separately. The -nervous affection is most common, if I may trust my observations, in -the mobile constitutions of women; at least nine out of ten cases, -which I have seen, were in women, and by far the greater number in -young nubile girls. In the latter cases the disease generally excites -some hysterical symptoms. - -This affection differs from chorea. The patient has no difficulty in -keeping the affected limbs steady, if not called upon to exert them, -and in general exertion is irksome and painful. Like chorea, however, -it is always attended with a constipated condition of bowels. The -evacuations, also, are uniformly hard, scybulous, and dark coloured. -There is certainly a considerable resemblance between the two diseases, -but it would be too much to assert that what has been called their -proximate cause, or their nature, is the same. Such an idea, however, -has been adopted by more than one physician who has seen these cases -along with myself. I mention this, not in order to give weight to the -opinion, but in order to give my readers a more distinct notion of the -form, which the affection we have been considering sometimes assumes. -A statement of this kind is more graphical than many descriptions. -Mr. Orfila, whose industry and ingenuity in the study of poisons are -well known, has not neglected to examine and note the effects of iodine -when given in a large dose. He gave it to different animals in the -quantity of a dram and two drams. They were in general seized with -violent and frequent vomiting. When the contents of the stomach were -not soon thrown off, or were altogether retained, the poison was much -more speedily fatal. The animals do not seem to have been affected -with any other very remarkable symptom. It is stated that they were -much dejected, and manifested suffering, though they did not howl, -were not paralyzed or convulsed, and were not affected with any of the -more violent symptoms by which poisons commonly show their action on -the living body. It is plain that much light is not thus thrown on the -effects of iodine when exhibited as a remedy; yet when considered along -with the appearances after death, we still find a certain analogy. The -stomach was generally found corroded by small ulcers of a linear form, -which had eaten through the mucous coat. Those parts, also, which -were most exposed to the action of the poison, were thinner and more -transparent than the others, and were easily torn asunder. The mucous -membrane in the neighbourhood of the pylorus was found much inflamed, -swelled, and covered with a crust of coagulated lymph. - - * * * * * - -The affection of the alimentary canal which we have described above, is -plainly to be ascribed to the acrid operation of iodine on its mucous -membrane. I have never witnessed it in any considerable degree when -this medicine had not been taken internally. But I have seen slight -pains of stomach, accompanied with copious bilious evacuations, attend -its external use. These never proceed to the degree of violence which -marks the internal exhibition. Indeed, it is rare to see them in any -considerable degree disturb the comfort of the patient. It is not -thus when taken into the stomach. The case of the young lady related -above, sufficiently shows its deleterious influence. I have never seen -any disease of the bowels which more closely resembled the terrific -descriptions given by the physicians of India, of the sufferings -from the cholera of that country. Yet no medicine varies more in its -effects than this. Some persons take it in large doses for a great -length of time with perfect impunity; while others, from that peculiar, -undescribed and unintelligible state of constitution, called by -physicians an idiosyncrasy, are speedily and violently affected by very -small doses. Mr. Magendie, whose accuracy is well known, states that he -had swallowed a spoonful of the tincture, containing about a scruple of -iodine, without any bad effect ensuing. A child, also, four years old, -swallowed by mistake a tea-spoonful of the same preparation with equal -impunity. These are extraordinary instances, for I have received the -account of the death of a fine boy ten years old, who did not survive -many hours after having swallowed the largest of the above doses. And a -strong man who took this medicine, under my own care, in doses of half -grains three times a-day for one week only, was very soon affected in -such a manner, that, had the medicine not been immediately interrupted, -the most lamentable consequences might have ensued. When this medicine -is given internally, and it is often necessary that it should be thus -exhibited, it must be used with extreme caution, under the sanction and -observation of those who are able to watch its effects, and who are -experienced in its virtues. - -I have never seen a case in which the mismanagement of iodine proved -fatal, and cannot, therefore, say whether its long continued use -ulcerates the mucous membrane of the stomach in the human body, after -the manner described by Orfila. I have no reason to believe that it -does, unless the extreme violence of the symptoms, and the obstinacy -of the vomiting, should by some be reckoned proofs of such a state. -I certainly, however, am inclined to believe that the last mentioned -symptom proceeds from inflammation and occlusion of the pylorus, which -Orfila describes as the effect of poisoning by iodine. - -It is a much more difficult task to discover a probable explanation of -the manner in which iodine disturbs the actions of the nervous system. -The rationale of diseases, even when we are best acquainted with their -history, is obscure and unsatisfactory. Here it is better at once to -stop short, and confess our ignorance, than, by adventurous speculation -and daring theory, lay a foundation for mistakes in practice. This -subject certainly presents a fine field for hypothesis, and a tempting -one to a theorist. But we leave our readers in possession of the facts, -and trust they will not use them with less caution than ourselves. -One thing only seems probable, that is by its operation on the brain, -either immediately, or through the agency of the nerves, that the -effects we are considering are produced. The similarity of this -effect of iodine to the mercurial erethismus, so well described by -Mr. Pearson, will be evident to all, and is an analogy deserving of -attention and study. I have seen many instances of gilders in Paris -and Geneva affected with mercurial erethismus, closely resembling the -erethismus from the use of iodine. - - * * * * * - -Our most important consideration is the cure of these painful -affections. In the choleric disease the first remedy of all, and -that without which we can have little hope of subduing the disease, -is opium. If called early to the patient, before the bowels have yet -thrown off their acrid contents, I have generally waited a little -before exhibiting opium. I have done this for two reasons: First, that -I might be certain of all acrid matters having been removed from the -alimentary canal before the prescription of a medicine to quiet its -irritation; and, secondly, because it is with great difficulty that the -opium is retained while the extreme irritation of the disease is going -forward. Emollient and diluting injections will in these cases be found -most useful auxiliaries, both by washing out the inferior portion of -the gut, and by quieting the violent action of the stomach. Hemlock -and hyoscyamus sometimes succeed when opium fails. The case related -at page 7 was much relieved, indeed I may say that the young lady’s -life was saved, by a quarter of a grain of acetate of morphium given -every half-hour. Every other form of opium was tried without effect; -they were not even retained an instant on the stomach. The acetate -of morphium alone could be taken, and it effectually restrained the -disease, which must otherwise have very soon terminated the life of -the patient. This medicine has not, however, answered my expectation -in other cases. I have tried various bitter and astringent medicines -in union with opium, but have found them uniformly injurious during -the first stage of excitement and exacerbation. Afterwards, when the -disease has in some degree abated, this class of medicine will be found -useful. I cannot too strongly caution my readers against the use of -purgatives in such cases. However gentle they may be, their effect is -uniformly and most decidedly noxious. In the first and acute period -of this affection of the alimentary canal, it is almost impossible -to quiet the disturbance which a purgative occasions. A remedy which -ought never to be neglected is the warm bath. It will be found a most -powerful coadjutor in restraining the violence of the spasms, and in -moderating the perturbed action of the stomach. - -But the greatest difficulty will be found in treating the second or -chronic stage of the complaint, when the symptoms we have mentioned as -characterising it are prolonged in a mitigated form. I am inclined to -believe, that in this state there is actual ulceration of the mucous -membrane of the intestines. I have only seen one case of this kind, of -which I have given the history above. But several similar instances -have been communicated to me, and they must be of frequent occurrence -wherever iodine is used ignorantly and rashly. In all those cases of -chronic affection of the alimentary canal, with the particular history -of which I have been able to become acquainted, the symptoms differed -widely from those which marked the accession of the disease. Instead -of the small vacillating pulse of the first period of the complaint, -it was bounding and firm, the extremities were no longer cold, nor the -system collapsed; the diarrhœa had assumed a dysenteric form, the fæces -being retained, and the dejections consisting chiefly of maturated -mucus or pus. In such cases, I believe, the conjoined operation of -aperient medicines and opium will be found most advantageous in -quieting the symptoms. By this plan at least I succeeded best in -relieving the single case that has yet occurred to me. - -With regard to the treatment of the muscular spasms, and the -disturbance of the nervous system, we have before described, there -is no invariable plan of cure to be followed. Until we are better -acquainted with the nature of the affection, it is impossible to apply -a remedy to the root of the complaint. All I can do here, therefore, is -to point out the means by which I have best succeeded in averting and -palliating its painful symptoms. I have seen ten cases of this kind, -and all of them have seemed to be much more benefited by attention -to diet, air, and exercise, than by any medicines they have taken. -Patients thus affected ought to live much in the open air; their food -should be sparing, mild, and nutritious; and they ought to avoid -carefully the use of wine and ardent spirits. By these means alone, -and the use of mild aperient medicines, two of the cases alluded to -were quickly recovered, although they began in a very threatening -manner. All the others but one were much relieved by the same means. -I therefore consider these simple remedies to be of the greatest -importance, and am convinced that without them no other remedies -will have any effect. Next in importance to gentle exercise in the -open air, and attention to diet, I should place the use of the warm -bath. By means of it the severity of the spasms is very frequently -relieved. The young lady, whose case is related at page 7, used it -daily, sometimes several times in a day, and never without benefit. -She could never enjoy any sleep at night unless she had previously -spent a quarter of an hour in the bath; and to this day she continues -the use of it. Joined to the above remedies, habitual attention must -be paid to the bowels. They should be moved by the gentlest medicines, -and they may often be advantageously acted on by glisters only. This -manner of exhibiting medicine is frequently objected to in England, -because it only empties the lower parts of the larger intestines; but -repeated experience has convinced me, that the mere circumstance of -evacuating the large intestines gives occasion to, and stimulates the -action of, the higher passages. I do not intend to defend the habitual -abuse of enemata which is daily witnessed on the Continent; but, in -this country, I think that their use may be extended with advantage. In -whatever way, however, the bowels are evacuated, it is of the greatest -consequence that they should be acted on by the gentlest medicines -possible. Such, however, is their slowness in this disease, that it -sometimes becomes necessary to use the strongest medicine in order to -effect a mere evacuation; but I have never seen the bowels violently -moved without the highest injury to the patient. My common practice -has been to prescribe small repeated doses of one of the neutral -salts, to each of which I desire five or six drops of laudanum to be -added. By this means it has seemed to me that my purpose was effected -with least violence. I have tried all the medicines of the class of -antispasmodics, and cannot speak in favour of any one of them. They are -either useless or hurtful. The tinctures and ethers are injurious in a -very marked manner and in a very high degree. Various other remedies -will, of course, be suggested to the judicious practitioner by the -peculiar circumstances of each case. - - * * * * * - -I may seem to some persons to have dwelt too tediously on the poisonous -properties of iodine; but let it be recollected, by those who have -had opportunities of becoming acquainted with its virtues, that this -medicine is as yet almost unknown to the numerous practitioners who -are now daily using it; that it is a medicine of singular power and -efficacy in a great class of disorders, with which the inhabitants of -this country are peculiarly afflicted; that this most useful remedy -may be divested of all its deleterious properties; that, therefore, -it will probably come into general use among us; and they will allow -that I have not bestowed too much time on this important subject. I -wish the details had been more complete, that my experience had been -more extensive, and that I had been better able to satisfy the reader’s -curiosity and my own. - -Some of my readers, who have lately been in the habit of using iodine -cautiously, and of watching its effects, may think that I have -overcharged the picture of its baneful properties; but I have been an -eyewitness of all I have written; and I should extend this treatise -much beyond the limits I have assigned to it, did I detail all the -cases that have reached me of the mischief it has produced. I am glad, -however, to add my testimony to that of Coindet, de Carro, and others, -that this medicine may most certainly be deprived of all its hurtful -qualities, by using it cautiously and watching its effect. Like all -other powerful medicines, when its action is not controlled by the -hand of a master, its energies become a source of mischief and ruin, -instead of restoring the blessings of health and strength; but when -well managed, it is a most useful remedy, and a valuable addition to -our materia medica. I have used it myself in a great number of cases, -and I have never yet, in my own practice, had occasion to regret the -occurrence of any of the violent symptoms I have described. I have -more than once discontinued the medicine on finding the pulse become -frequent, small, and depressed, on account of watchfulness, flying -pains of the joints, tremors, or pain at the stomach; but having early -detected these symptoms, they were not allowed to become formidable. -Dr. Coindet states, that he has prescribed the medicine to one hundred -and fifty patients, and that he has never had occasion to observe any -mischief from its use.[3] Dr. Decarro has given it at Vienna to one -hundred and twenty patients; Dr. Erlinger, of Zurich, to seventy; -and Dr. Formey has prescribed it extensively, in Prussia, with the -same favourable results. Dr. Decarro, in his enthusiasm about this -new medicine, seems almost to doubt whether accidents have ever -occurred from its use, though these accidents have been as public -as the day, and the unhappy patients have paid with their lives the -inexperience and rashness of their physicians. Thus far I can agree -with Decarro, that I have never known or heard of any bad effect from -iodine, when it had not been used unadvisedly and injudiciously. It -has been used extensively by Hufeland in Germany, who makes no mention -of its deleterious properties; and a great number of physicians in -London and Paris, and various parts of England and France, have also -lately employed it. They have either not met with the accidents I have -described, or have prudently concealed them. - - [3] Dr. Coindet, however, though he must be acquainted with - the sad accidents which have occurred in his native city, has - not yet taken any public notice of them. This silence on facts - so important seems in some degree to invalidate his testimony. - - - * * * * * - -Having now considered the effects of iodine on the alimentary canal -and the nervous system, we are prepared for studying its effect on the -absorbent vessels, by which its use in medicine is indicated. This -is the most important subject which has yet fallen under my review, -and I shall give it as much extension as may be necessary for its -perfect discussion. It has been already seen at pages 10 and 12 that -the lymphatic system is very powerfully and generally stimulated, so -as to occasion a great absorption of all the sebaceous, muscular, and -glandular structures of the body; but it will be seen, in the following -pages, that the action of iodine may be directed exclusively against -tumors, and local disorders, while the healthy structures of the body -remain unaffected. - -The absorbent system is distributed over every part of the body. In -the brain alone the vessels of this class have not, hitherto, been -detected and submitted to ocular demonstration by any other anatomist -than Mascagni. But physiological and pathological proofs of their -existence, equal in force to any anatomical evidence, are not wanting -to demonstrate their presence in the central organ of the nervous -system. The office which these vessels discharge, in the nutrition of -the body and removal of its waste, is most important to its healthy -condition; and the influence it exerts, in a state of disease, is not -less considerable. From the inactivity or obstruction of the absorbent -vessels, a great proportion of the chronic disorders of the body -take their rise. Medicines, therefore, which act either directly or -indirectly on this system, have always been accounted most valuable -articles of the materia medica. Unhappily, they too often deceive us -in their operation, and, notwithstanding the united studies of many -physicians directed to them, the causes of their failure, as well as -the circumstances under which they succeed, still remain a problem. A -considerable step towards the solution of this difficulty has, indeed, -been lately taken by Dr. Blackall. Much obscurity, however, yet rests -upon the subject, and a direct medical agent on the absorbent system, -whose effects are speedy, indubitable, and powerful, is a great -desideratum in the art of healing. - -Such an agent is iodine. Its effects on the absorbent system are -incontrovertible. They are as speedy as they are certain, and so -powerful are they, that if the medicine be not duly and cautiously -managed, we have already seen what havoc may be the result. A few, a -very few, cases have occurred to myself, in which the constitution was -altogether insensible to its action; I believe a greater number have -occurred to others; but I cannot help thinking that such cases have -been owing, in many instances, either to some fault in the medicine, or -to some inadvertence on the part of the practitioner.[4] - - [4] The iodine which is sold in the shops is of very different - degrees of purity, which will probably afford an explanation - of some of the above anomalies. But still after all possible - care has been taken, there will be found a few instances - in which it does not appear to possess any power over the - absorbent system. - -We shall first consider the use of iodine in the treatment of -bronchocele, the disease for the cure of which it was introduced into -practice. All the physicians who have employed it bear unequivocal -testimony to its efficacy. It seldom fails of effecting a complete -cure, and when it does, it almost always reduces the swelling -very considerably. The promptitude of its action is at times very -extraordinary. Decarro states, that one of his patients, thirty-eight -years of age, after taking the remedy for seventeen days, had the -circumference of his neck reduced from one foot seven inches and a -half, to one foot three inches and three-quarters. Dr. Coindet relates -a case of a man, fifty years of age, in which this medicine, taken -internally, reduced a very large goître considerably in size, after -six days’ treatment only. An old woman, aged sixty-five, who took this -medicine under my care for a goître, with which she had been affected -nearly forty years, had the circumference of her neck reduced from -twenty-two inches to eighteen, on the twenty-fifth day. Such rapid -diminution in the size of the tumor is not to be always expected. In -some cases a whole month, and even more, elapses before any effect is -visible. In general, however, the powers of the medicine are manifest -at the end of the second week and considerable progress towards cure -has been made at the end of a month. I have endeavoured to find out -whether there was any thing in the constitution of the different -persons under my own observation, or in their state of health, which -rendered them more or less apt to be affected by this medicine. I -have not been very successful in this inquiry. But I found that in -two cases of women afflicted with extensive and very painful varix of -the veins of all the extremities, the effect of iodine was produced -with great difficulty. This fact seemed to coincide with the result -of Mr. Magendie’s very interesting experiments on absorption, and I -accordingly desired one of the persons, to whom I have just alluded, to -lose a little blood from the arm. The effect of the medicine was very -much accelerated by this treatment, but a consequence I did not look -for was also the result of it, viz. the total and sudden disappearance -of the varix, which had commenced during uterine gestation twelve years -before. The goître succeeded the varix after her delivery. I merely -mention the facts of this case, which may suggest useful hints to those -who may meet with a case similarly circumstanced. Since its occurrence, -whenever the medicine is slow in its operation, provided the vessels -be full and plethoric, I desire a little blood to be taken away from -the arm, and I almost invariably find the action of the medicine much -quickened. I have sometimes, also, thought that the cases, in which -blood was taken away, were cured more easily and with less suffering -than the others. - -There is, very rarely, any considerable effect produced on the arterial -system by iodine, if it be given with propriety and caution. Sometimes -it accelerates the pulse in a slight degree; it frequently occasions a -little mucous expectoration from the chest, and it often raises nervous -symptoms in delicate subjects, which are very distressing. I saw it -given to a young woman in one of the public hospitals in Paris, in -whom it produced such a state of insomnia that she told me she had not -slept at all for a whole week, though she had been a very good sleeper -before. I have said that it affects the pulse but a little, yet it -sometimes stimulates very powerfully the arterial vessels of the tumor. -This is mentioned by all the authors who have written on iodine, and -is one of the most singular circumstances in its medical history! - -This irritation of arterial vessels frequently becomes active -inflammation, requiring the use of bloodletting for its relief. Topical -bleeding will, in general, be found fully competent to remove it. -Indeed, it sometimes happens that when the iodine has lighted up smart -inflammation in the tumor, the arterial system generally is unaffected. -To what is this effect on the vessels of the part to be attributed, -from which the constitution generally is free? - -The same is occasionally true of the absorbent vessels. I have -seen some very large tumors discussed, while there was no evidence -whatever of the absorbent vessels in other parts of the body having -felt the influence of the medicine. It is a curious question, to -determine by what law the constitution remains impassive to the action -of a medicine, which affects remote and distant parts through the -constitution. Certain tumors are of so irritable a nature, that a -stimulus, which only serves to rouse the healthy energies of the body, -excites the process of destruction in them. In the quaint language -of a celebrated modern lecturer, “they are irritable beings, if you -touch them they’ll kick.” But this is not the case with many of the -tumors which are dissipated by iodine. Bronchocele, for instance, is -of a slow growth; all the operations which go forward in its structure -are of a very indolent and chronic kind. Such, also, is the case with -the greater number of scrophulous tumors. Yet all of them have been -dissipated, like a charm, by the agency of iodine. - -In prescribing this medicine, it is very necessary not to lose sight -of the effect I have just mentioned. When the tumor is very large, -and especially in that kind of bronchocele, in which the principal -enlargement of the thyroid gland takes place on its inner surface, -where it is in contact with the trachea, the occurrence of inflammation -is much to be apprehended. When a very large tumor becomes inflamed, -the distress which it occasions, and the disturbance it excites in the -constitution, are very considerable; and in the second case to which I -have alluded, inflammation of the trachea is very readily excited.[5] -Such cases are easily distinguished by the immovability of the tumor, -and the effect they have in altering the voice. On dissection, the -trachea is sometimes found to have been very much compressed by them. - - [5] Dr. Coindet gives an instructive example of this kind. - _Bibliothèque Universelle, Février, 1821_, p. 148. - -It is now fit that I should mention the most common and beneficial -methods of using this substance. Dr. Coindet has recommended the -hydriodate of potass as an external application, and my experience -has certainly confirmed his choice. The hydriodate of soda, however, -will be found to answer equally well. Practitioners may choose between -these two remedies. I have used the iodates, but I have found them at -once more inert and more unmanageable. They possess all the virtues -of iodine in a very remarkable degree, but they will be found to fail -more frequently than the hydriodatic salts; and, if I may draw any -conclusion from the few trials I have given them, they are more apt -to excite disorder in the system. I have generally ordered half a -dram of the hydriodate of potass to be united to an ounce and a half -of axunge, and desired the patient to rub in a dram of this ointment -over the surface of the tumor, night and morning. When the tumor is -painful, it is not necessary to rub in. The ointment may be used in the -manner recommended by Scattigna.[6] All that is necessary is to choose -a portion of the surface of the body where the skin is very tender and -thin, and simply to apply the ointment over night. For this purpose, -almost any part of the body which is habitually covered may be chosen; -but in the axilla, and in the inner surface of the thighs close to the -scrotum, the absorption will be found most rapid.[7] - - [6] Nuovo metodo di amministratori l’unguento mercuriale ne - mali fisici del Dottore Vitantonio Scattigna. Napoli, 1818. - - [7] I have seen, in the hospitals of Naples, the most - decided and unquestionable effects produced by mercury used - in this manner, I have since used it frequently in my own - practice in the same way; and I believe that the mercurial - ointment, thus used, is exempt from much of the inconvenience - occasioned by rubbing. I have seen several persons use it in - this manner with ease, who could not rub in mercury without - much suffering. Scattigna asserts that it is also much more - efficacious than when rubbed in by the common method. His way - of using it is, to extend a scruple of mercurial ointment over - the skin of the axilla before the patient goes to sleep. In - the morning, the whole of it will be found to be absorbed, - and in this way he calculates that as strong an effect is - produced as by a drachm of the ointment. I have used, in a - case of hydrothorax, an ointment of squills in the same way, - which has caused an increased flow of urine, which I had - vainly endeavoured to effect by means of the same medicine - given by the mouth. These statements are at variance with the - experience of Mr. Pearson, which must be allowed to be of much - weight in this matter. Will the difference of climate account - for the discrepancy? - -It is a more important question to determine the proper method of -using this medicine internally. From my own experience, I am inclined -to give a decided preference to the solution over the tincture. It is -prepared by dissolving thirty grains of the hydriodate _of potass_ in -an ounce of distilled water. I have generally begun this preparation by -a dose of ten drops, and augmented it gradually to twenty, and, very -seldom, to twenty-five. This preparation can dissolve an additional -dose of iodine; a formulary, however, to which I seldom, if ever, have -recourse. I have found that the deleterious action of the medicine -on the bowels was more marked, in proportion to the quantity of free -iodine it contained. For this reason, also, I now seldom have recourse -to the tincture, a form much used, because it is less expensive. -Practitioners will, in general, find an advantage in confining -themselves to the external use of iodine for the cure of bronchocele, -and tumors, which do not arise from any vice in the constitution. In -a few cases of bronchocele, however, it is necessary to have recourse -to its internal use, especially when the disease exists in a strumous -habit. By the use, either of the ointment, or of the solution in the -way we have recommended, a soft bronchocele will be discussed in a -month or six weeks. Those which are hard, and of old growth, generally -take a little longer time, and many of these latter cases cannot be -altogether reduced. I have seen two cases, however, in which the -tumors gradually disappeared some weeks after the medicine had been -altogether discontinued. Dr. Coindet says, that he has seen several -cases of bronchocele, complicated with watery cysts, yield completely -to the action of iodine. I have only had occasion to see one such case -treated by this medicine. It was somewhat lessened in its bulk, and the -patient was certainly relieved, but the disease was by no means cured. - -If the iodine be given internally, it is indispensably necessary to -watch its effects from day to day. No peculiarity of circumstances -whatever can dispense the physician from this care; and if it be -recollected that it is yet a new medicine, that unknown accidents, -to which it is liable, may be discovered by future investigations, -this caution will not appear superfluous. The case related by Dr. -Coindet, to which we have already alluded at page 36, in which a very -powerful and painful effect was produced at the end of the fifth -day, sufficiently evinces the necessity of the watchfulness here -recommended. - -When iodine acts kindly on the constitution, no other effect will be -found to accompany its use, but a diminution of the tumor and a little -nervous excitement, which is sometimes not so severe as to become -disagreeable. The increase of appetite is a very frequent effect of -iodine, and it is sometimes very troublesome, because it is extremely -necessary not to indulge it. The diet of the patient should be good, -but by no means full, which the occasional voraciousness of his -appetite would lead him to adopt. - - * * * * * - -Having established that the use of iodine in bronchocele was owing to -its effect on the absorbent system, it was natural to conclude that it -would be of equal service in the cure of scrophula.[8] Accordingly, -we find that Dr. Coindet made trial of it in the cure of the latter -disease, soon after he had determined its virtues in the former, and -that his experiment was followed by the most satisfactory result. I -have already considered at so great length the general effects of -iodine on the constitution, that little remains for me in this place -but to mention the particular cases in which I have found it useful, -and those in which it has failed my expectations. - - [8] On perusing most of our practical, and more especially - our systematic authors, this term will be found of such - latitude and various meaning, that, were they indiscriminately - followed, scrophula might be considered an universal disease. - In this place, we confine our attention to those diseases - which are familiar to all practitioners, scrophulous tumors of - the conglobate glands. - -The first case of scrophula in which I made use of this medicine, was -that of a young lady eighteen years of age, who had been affected by -glandular swellings of the neck for nearly eight years. She used the -solution of hydriodate of potass for a month; the dose varied from -ten to twenty drops three times a day, with occasional intermission -of a day when the absorption was going on rapidly. At the end of this -time she had got perfectly rid of her swellings, and she now (two -years since she took the medicine) remains perfectly well. When she -discontinued her drops, so far from having been incommoded by them, -her health was certainly much improved. There remained several little -fistulous sores, which required the assistance of the knife to heal -them. The iodine is not equally efficacious in all cases of this kind. -Great numbers, however, yield rapidly under its use; but many of them, -also, resist its operation. I have never been able to assign even a -plausible reason for this difference of its action in scrophula. In -general, I have found such cases yield more readily to the internal -than to the external use of iodine. The scrophulous glands of children -are not so easily affected by iodine as those of persons who have -attained the age of puberty, and they are also more liable to a relapse. - -A female servant in one of the public hotels of Paris, aged -thirty-three, married, who had born several children, shewed me a tumor -of her right breast she had had about two years. It was not attended -with any pain, but had lately somewhat increased, which gave her alarm. -About a year before she had been advised by a surgeon to have it cut -out. This advice gave her so much uneasiness, that she presented -herself at the clinical consultations of M. Dubois. That eminent -surgeon immediately distinguished the tumor to be scrophulous; and -during three months’ treatment, all the usual remedies of this disease -were exhausted without the least effect. A scruple of the ointment of -the hydriodate of potass, placed in the axilla at night, completely -removed the tumor in about six weeks. This is the only case of a -similar kind in which I have used iodine. I have never yet employed it -in scirrhus of the breast.[9] - - [9] My friend Mr. Maunoir, of Geneva, informed me that a - little boy from one of the interior towns of Switzerland, was - brought to him on account of a swelling of the knee-joint. He - had already been under the care of several eminent surgeons, - who had all declared the tumor to be a white swelling, and had - recommended the amputation of the limb. Such, also, was the - opinion of Mr. Maunoir; but finding the friends and the boy - himself extremely averse to the operation, he tried the effect - of iodine. In the course of a few weeks the tumor, pain, - and stiffness of the joint were dissipated, and the boy was - running about as formerly. - -I was called in the month of February, 1822, to visit a boy five years -old, affected in the following manner. Since the period of his birth, -he had always been weakly, but, for the last two years, had gradually -been falling off in his flesh and strength. He complained of frequent -pains in his bowels, which were alternately confined and purged; the -motions were discoloured and scybalous; he frequently vomited his -food; his abdomen was much swelled; the rest of his body considerably -emaciated; pulse natural; appetite variable, but never great. It -was impossible to doubt, from the appearance of the child, that the -mesenteric glands were enlarged, and I determined to make a very -cautious trial of iodine. It was the first case in which I had used it -for an internal disease, and I therefore watched it with unremitting -care. I began by giving my little patient twelve drops in the day, -which I gradually augmented to twenty, and I had the pleasure of seeing -the abdomen gradually diminish in size, the bowels become more regular, -the evacuations restored to their natural colour, the pain diminish -and vanish, the appetite increase, and at the end of five weeks the -child return to comparative health, without the occurrence of a single -untoward symptom. The only medicine I employed during this treatment, -besides iodine, was occasionally a few grains of rhubarb. At the end -of the five weeks the bowels acted without medicine. I am sorry to -say that I lost sight of this child from this time. The parents were -poor, were probably satisfied with the benefit they had received, -and not willing to incur any farther expense for medicine. I have -since prescribed this medicine in two other cases of disease of the -mesenteric glands. The result was not so satisfactory as in the case I -have just related, but both of them were considerably relieved, and had -they been more attentive to the directions given them, I have little -doubt that they also would have obtained a complete cure. But they were -in the poorest class of society, were irregular in their habits, and -paid very imperfect attention to the orders of their physician. In one -of them, a young woman, fifteen years old, after she had taken fifteen -drops of the solution of hydriodate of potass, twice a-day during three -weeks, considerable tenderness of the whole abdomen came on, for which -I judged it necessary to order the application of a dozen leeches. The -relief was immediate. From the whole appearance of the case, I judged -this feverish attack to be an affection of the mesenteric glands, -similar to what I have described at p. 39. - -I have used this medicine in cases where I had good evidence of the -presence of tubercles in the lungs, and I do not doubt that it will -be found to be serviceable in the incipient stages of the disease. -But I much question whether it will prove even innocent in the more -advanced periods of tubercles, when extensive disorganization has taken -place in the lungs. Some cases in which I have prescribed it, were -benefitted in so marked a manner as to have inspired me with hopes of -having at length found a remedy for that hitherto intractable and cruel -malady. Other cases, on the contrary, seemed to be much aggravated by -its use. If I may judge from the cautious expressions of Dr. Baron, -in his work on tuberculous disease, this is nearly the result of his -experience also. It is much to be desired that we had sufficient data -for distinguishing the cases in which its use is beneficial, inert, -and injurious. As yet, the results I have obtained do not entitle me -to come to any very definite conclusion on this subject. Mr. Haden, -in his translation of Magendie’s Pharmacopœia, has given the history -of a case of affection of the chest, in which he seems evidently to -think that tubercles were removed by the agency of iodine. I am glad -to find this case stated by Mr. Haden with his characteristic candour -and caution. It is much to be desired that a series of such cases were -published. They would form the materials on which a just estimate of -the powers of this medicine might be formed. I trust to be able, at no -distant period, to give the result of my experience in this disease to -the public, in such a manner as to establish what are the real virtues -of iodine in the cure of pulmonary tubercles. At present, there is -certainly sufficient ground for making a cautious trial of its powers; -but, if I may trust to my own experience, it is impossible to use it -with too much circumspection. - -A young gentleman, aged twenty-six, who had passed four winters in the -south of Europe for a cough, with pain in his chest, and occasional -expectoration of a thick maturated discharge, frequently streaked with -blood, consulted me on account of swelled glands in his neck, which -he had had from his infancy, but which were at that time particularly -troublesome. I desired him to use a solution of hydriodate of potass -in the dose, of twelve drops three times a-day. In the course of two -months, the swellings in the neck, which had pained him from his -infancy, were quite dispersed, and at the same time his sufferings in -the chest were so much diminished that he requested to be allowed to -continue the medicine. I allowed him to use it a fortnight longer, at -the end of which time he was quite free from complaint. He subsequently -had another attack of his chest complaint, and wrote to me from -Thoulouse to request directions for renewing the use of the medicine, -under the care of a French physician. Before my letter reached him, -he was carried off by an attack of some violent complaint, of which -I never could learn the history. I have exhibited this medicine in -several such cases, and frequently with the most marked good effects. -In fine, I have not the smallest doubt of its efficacy in relieving -many diseases of the chest, in which all the general symptoms, as well -as all the local means of exploring the condition of the lungs, which -have lately been so much attended to in France, have given me the -most satisfactory evidence of the presence of tubercles. I will not -yet assert, however, that the use of iodine has been followed by the -absorption of tubercles in the lungs. This important fact must not be -affirmed hastily; but I trust I shall be enabled, at a future period, -to establish it to the satisfaction of every one, or to explain the -beneficial action of the medicine on other grounds. - -Dr. Baron, in his work already quoted (p. 221), has related a case -of encysted dropsy of the ovarium, in which the use of iodine was -attended with the most manifest and rapid benefit. I have seen it used -in a case of the same kind, in which a swelling that had been twice -tapped, and which then filled the greater part of the abdomen, was -almost completely removed. The patient, a woman of sixty-two, has -recovered her strength; she has resumed the appearance of health, and -has remained eighteen months free from dropsical symptoms. - -I have made trial of iodine in two cases of ascites without benefit. -I have also made use of it in a case of amenorrhœa, according to -Coindet’s advice, without the smallest advantage; nor have I been able -to satisfy myself that it possesses any power over the uterine system. - - - - - CONCLUSION. - - -The liability of iodine to excite great disturbance in the -constitution, has been made an objection to its use. I fear that -this reproach must be shared by all powerful medicines whatever. If -unattended to, or used with levity, any medicine which is capable of -doing good, may also do harm. But if used with due discretion and -properly watched, I have no hesitation in affirming, that iodine may -be employed with as much safety as any of the powerful remedies which -are daily in the hands of the least skilful members of the profession. -But it has been also made a subject of reproach to this remedy that it -is quite inert and useless. I shall not give any further reply to such -a statement than what the foregoing pages contain. But I am credibly -informed that it has been used by several eminent practitioners of -London; who finding it quite inert, had laid it aside as useless[10]. - - [10] So great have been the ravages committed by the imprudent - use of iodine in the Pays de Vaud, that the government of that - canton has issued an injunction against its sale, excepting - under the signature and responsibility of a physician. - -I have already pointed out one source of such mistakes (page 3). I -fear, however, that it has also been used by physicians who have not -leisure of mind nor time enough for conducting such inquiries as they -ought to be conducted. When we consider the silly pretences on which -medicines are sometimes forced into fashionable practice, it will -not appear wonderful that the investigation of their virtues should -not be conducted with much zeal. But I know also that it has been -hastily rejected, and without trial, by some persons grown old in -the practice of physic, who have made their interests decidedly to -consist in defending all that is old, and repudiating all that is new. -Such persons expose themselves to ridicule when we see them reject a -remedy so active as iodine, and continue to trust, for the cure of -the severest diseases to which the human frame is liable, to medicines -allowed on all hands, and even by themselves, to be absolutely useless. - -The value of iodine as a remedy, however, does not depend on the -testimony of any individual, however high his name. Its use is -established by a long series of facts observed by physicians and -surgeons of different countries. Wherever it has received a fair trial -from unprejudiced persons, its effects have been so striking and -undeniable as to force assent. It is not one of those remedies which is -adopted by one man, and rejected by another, according to the accident -or caprice of the moment; but one whose effects are written in such -clear and intelligible characters, that _he that runs can read_. Its -applications also are in cases of such common occurrence, that all -practitioners have an opportunity of satisfying themselves of the real -nature of the remedy, and the extent of its powers. - -This medicine has also been called an empirical remedy. Of what -importance is it that it should bear this or any other name, by which -the enemies of every thing that is new endeavour to keep others in the -same state of happy ignorance which satisfies their own indolence, and -answers the demands of the common routine of their practice? But in -what respect is it an empirical remedy? Do we know any thing more of -the action of a purgative? It is said to stimulate the larger or the -smaller intestines, and iodine may be said to stimulate the absorbent -vessels; and after we have said this, are we at all wiser than we were -before? The only questions now before us, those which alone appear -worthy of discussion, are, Do we in iodine possess a remedy for the -diseases in which I have said it is useful? and if we do, on which of -the living textures does it seem most particularly to exert its action? -These questions settled, all the rest is of comparatively trivial -importance. - -The medicines which exert their action on particular textures or -systems are extremely few indeed, and the few we possess are so -uncertain in their operations, they are liable to such frequent -failures, that sceptical physicians doubt of their efficacy -altogether, and even of the efficiency of medicine. There is something -peculiarly gratifying to their vanity in supposing themselves freed -from the common errors, and above the credulity of the vulgar. Iodine, -however, is not liable to the sneers of such narrow minds. It is a real -“heroic remedy”—a true present from the science of medicine to mankind. - - - - - APPENDIX. - - -I have here thrown into an Appendix a brief account of the different -preparations of which I have had occasion to make mention. It is -chiefly extracted from Magendie’s Formulary, which will be found to -contain sufficient directions for the chemical and pharmaceutical -operations undergone by iodine. - - _Tincture of Iodine._ - - Take of Alcohol, of sp. gr. of .842, 1 oz. - Iodine, 39 gr. - Dissolve. - -This preparation should not be long kept, as it readily undergoes -alteration and decomposition. Alcohol varies in its solvent power of -iodine according to its degree of concentration. The frequent opening -of the vessels, therefore, in which it is kept, must occasion a change -in the quality of the tincture, by allowing the evaporation of the -spirit, and thus occasioning a diffusion of undissolved iodine through -this preparation. Mr. Magendie seems also to fear, that a decomposition -of the alcohol may take place from the superior affinity of iodine for -hydrogen. Altogether this is certainly the most objectionable form in -which iodine is used. - - _Solution of Hydriodate of Potass._ - - Take of distilled Water, 1 oz. - Hydriodate of Potass, 30 gr. - Dissolve. - -I have generally prescribed these two preparations in cinnamon or mint -water, in which form they are seldom disagreeable to the stomach. -I have avoided, as much as possible, joining them to any tinctures -or infusions, as we are yet in a great degree unacquainted with the -chemical habits of iodine and the different vegetable substances. It -will be sometimes, however, found advisable to use tonics with iodine. - - _Ointment of Hydriodate of Potass._ - - Take of Hydriodate of Potass, ½ dr. - Axunge, 1½ oz. Mix. - - - - - NOTE. - - -Since these pages were put to press, I have received from Professor -Maunoir the following details of the case mentioned at page 49. As -far as I know, it is the only case of the kind on record. I make no -apology, therefore, for inserting it in this place. - -“C’est le 18 Mars 1821, que j’ai été consulté pour la première fois -pour le jeune B—— de Soleure, enfant de huit ans, atteint, depuis moins -d’un an, d’un _white swelling_ au genou droit; pour lequel on avoit -employé inutilement vésicatoires, sangsues, topiques résolutifs de -toute espèce, remèdes internes, &c. Il avoit alors une augmentation -considérable dans le volume du genou, que le médecin supposoit avoir -lieu dans les os plutôt que dans les parties molles, et en même tems -une diminution sensible dans le volume de la jambe. L’enfant ne pouvoit -faire un pas sans douleur avec des béquilles; car il y avoit flexion de -la jambe sur la cuisse, je ne sais pas à quel angle, mais impossibilité -d’extension. - -“Je l’ai traité par correspondance sans le voir; on lui a fait des -frictions avec l’onguent d’iode, gros comme une noisette, matin et -soir. Il a pris la teinture d’iode à la dose d’ 1/12 de grain au plus. -Son estomac n’en a été nullement affecté, et huit mois après le père -n’a pas pu résister au plaisir de me montrer son enfant. Il me l’a -amené à Genève, et j’ai vu cet enfant, marchant et courant lestement, -le genou droit de la même grosseur que le gauche, et aussi serviable -que celui-là.” - - - THE END. - - - LONDON:—PRINTED BY J. 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