1900: The discovery of epinephrine (adrenaline)

You be possible to thank this man, Jockichi Takamine (1854-1922),
in quest of the discovery of Adrenaline.  T’he retake inhalers we
use today are singly available because of his discovery.  
This is a picture he did of himself 
(From Therapeutic Notes, Vol. 28-32). 

Throughout our history there were always options for asthmatics. Yet that afore~, what remedy worked best for every individual patients was basically a crap fire, and the relief obtained was palliative at best. This left asthmatics wishing towards a quick relief medicine, a redemption medicine, or something that would fast relieve asthma symptoms when they occurred. That ramble began in 1901 when Jokichi Takamine (1854-1922) single the pure form of adrenaline, in addition known as epinephrine.

Actually the proceed began a few years earlier. By 1895 physicians began experimenting by adrenal extracts. In 1893, George Oliver (1841– 1915), using his concede instruments, studied the impact of glycerol extracts on arteries. In one experiment, he had his son appropriate sheep adrenal gland, and he observed for what reason his son’s vessels became constricted.  (1, boy-servant 155)

He then performed experiments without ceasing adrenal extracts at the University of London through Edward Schafer, although were unable to dissociate the active ingredient. (1, page 55)(6, NCBI)

 In 1899, fair though he had yet to dissociate it, John Jacob Abel (1857-1938) gave the diligent ingredient the name epinephrine, and later Wilson referred to it in the same manner with adrenaline.  (1, page 155)

Figure 1 –1944 ad showing glass epinephrine,
 ampoule,and a glass syringe with hypodermic needle.
The medicine was drawn up using the needle,
stored in the glass squirt, and either injected
into the long-suffering or into a nebulizer cup.

Since this time, the compounds has been referred to of the same kind with adrenaline in Europe and epinephrine in America. The embarrassment that ensued later inspired the World Health Organization to cause a law banning the use of two names for the same medical combination, although epinephrine/ adrenaline was grandfathered in. I’m virtuous writing this here to explain for what cause both names are proper and the pair are still used to this epoch to refer to the same occurrence.  (1, page 155-156)

Beginning in 1895 adrenaline extracts were used in experiments to study its vasoconstricting abilities, and to know if this offered benefits for unfixed medical conditions, including rhinitis, conjunctivitis, and asthma. Oliver and Schafer showed the furniture of adrenal extract on blood press. In 1900, Solomon Solis-Cohen (1857-1948) of Philadelphia showed the goods of adrenal extract on asthma and hay ferment. He showed that the pill reading of the extract benefited asthmatics. And in the end, in 1907 the bronchodilator effect of the texture was proven by Khan. (1, boy-servant 156)(14, NCBI)

In 1903, Jesse G.M. Bullowa and David M. Kaplan gave each injection of adrenaline to an asthmatic who, within only minutes, was respiration easy. This was the first known give an account of of an asthmatic getting instant projection from a medicine. (1, page 156)(destitution second reference).

So, epinephrine was separate, and then it was synthesized, and this resulted in unfixed epinephrine products. Efforts were then made to improve the compound to obtain the desired purport while minimizing side effects.

Doctors were hurried to start prescribing it for their asthmatics, who, in the same manner with you might imagine, quickly fell in have a passionate affection for with the medicine.  Yet the greater number of asthmatics continued to stick with their usual asthma remedies, which absolutely consisted of asthma cigarettes, powders and laudation. Only in an emergency did they try out a physician, who would bestow the laboring asthmatic epinephrine, and remedy would come within minutes.

The debate that remains here is: why did epinephrine give sudden asthma relief? At the be converted of the 20th century, asthma experts believed asthma was caused ~ the agency of dilation of the vessels in the lungs (and this resulted in congestion).  So it only made brains that the initial theory was that epinephrine made craving easier because it constricted vessels in the lungs.  This was in addition the same reason that cocaine was ~times used to treat asthmatics.  Many articles tale the use of both adrenaline and cocaine. (4, boy-servant 854)

Yet another theory, a projecting theory from the 19th century in reality, was that asthma resulted from spasming bronchiolar ready muscles, and in 1907 Khan demonstrated the adrenaline was in event a bronchodilator. For the next separate years both the vasoconstriction and bronchoconstriction theories were believed to grant to asthma.  (4, page 854)

Adrenaline was initially trialed the two orally and subcutaneously, and ultimately it was trialed ~ the agency of injection into the muscles and intravenous.  Various physicians reported the verbal route had no effect on asthma, and the powerful route was most effective.  However, in that place are some reports into the 1910s in what place physicians continued to debate the with most propriety route.

James Adam, in his 1913 main division “Asthma and its radical treatment,” describes it this progress: (7, page 27)

Photo from ~y advertisement for Adrenaline Ampoules in the 1909-10
impression of”Therapeutic Notes” by Park Davis and Company

Part of the throe-allaying effect may be due to absorption of the drugs from the nasal ropy membrane or larynx or trachea. But season adrenalin applied to the larynx acts fairly energetically in allaying asthma, applied to the nose it acts much less energetically than when given hypodermically (~ means of injection). However it is given, for arriving at the right ventricle the adrenalin disposition pass direct to the lungs and there, probably somewhat indirectly, it will take the same effect on the plethora of the bronchi and bronchioles at the same time that on nose and larynx. In this way and by its feat on the heart it will ameliorate to relieve the dyspnoea; but (Brian) Melland  makes a further interesting suggestion.  Perhaps one capital to recommend adrenaline to physicians was Brian Melland.  In the May 21, 1910, exit of Lancet, he “claims marvelous results in the handling of the paroxysm of asthma by the hypodermic use of preparations from the suprarenal glands. One clyster of 10 minims of 1:1000 re~ is all that is required, except may be repeated if other attacks occur .” (5)

Melland described some of the experiments he performed in successi~ his own patients with severe asthma and hay febrile affection.  One of the case studies is reported forward here: (6, page 476)

In the pristine case, for example, that of a woman 30 years of age, with asthma of 6 years’ motionless, the first injection of 10 minims of the 1 in 1000 elucidation caused a paroxysm promptly to pass out of sight and prevented a return of the vex for seven days, whereas before this convulsive attacks had been present nightly. After the abet injection the effect did not persevere so long, and for a time the diligent employed every night an injection of (i minims of the elucidation in order to cut short the violent and short-lived attacks. After four or five weeks of this, the incidence of the asthma became a great deal of less frequent, and the general clearness of the patient was greatly improved. The employment of adrenalin by the mouth, up to 15 minims of the separation, was also tried in this state, but without result.

These are adrenaline amps from a 1909 information in
Therapeutic Notes.  For the in the beginning time the medicine was
pre-uniform and pre-satitized.  All that was needed was
to catch at off the top and draw up the physic with a
hypodermic needle (11, boy-servant 69)

The opinion of Melland was more distant expounded upon by James Adam in 1913: (7, boy-servant 27)
Adrenalin acts as a spur to the sympathetic**. He suggests, and gives supporting ground of belief, that at the same time it tends to bar or relax all involuntary muscles supplied through the cranial and sacral outflow of nerves. Now the constrictor muscles of the bronchi belong to this group,and assuming that spasm of these in organ accounts for the asthmatic spasm, they would have ~ing relaxed by the adrenalin. Whereas, the constrictor staple of the bronchial arteries which get to off the systemic system, and are, like other systemic vessels, when exposed to sympathetic control, will be stimulated to covenant, and so the congestion is reduced. The former’s of General Medicine words it in a other friendly fashion: (8, page 164)
Melland believes the adrenalin acts ~ the agency of relaxing the muscles supplied by the vagus force, and since the bronchial muscles are innervated ~ dint of. that nerve they are relaxed and the sudden contraction ceases. By the many articles, snippets and editorials all over Melland’s article, you can be effective there must have been quite a borer of excitement among the medical common, and asthmatics, about this new remedial agent.  Another example of this comes from the following snippet from Therapeutic Notes in 1909:(9)
A practitioner of ample repute in one of the Central States sends us these wrangling: “I wish to write you a word or two about the use of Adrenalin in asthma following hay-agitation. Last year my wife was want so greatly with this affliction that she could scarcely pause. No ordinary remedies appeared to accord. her any relief, so in fury I sprayed about twenty drops of the post solution up into the nostrils, and in a scarcely any minutes the paroxysm was over and did not return. I am not in the temperament of writing this kind of a verbal expression, but this experience is bona fide and I muse it should be known.”

The hypodermic needle is a hollowed out needle that allows for medicine
to exist drawn into a glass syringe and injected into a long-suffering.  It was invented
in 1853 by Dr. Alexander Wood to make it easier to bestow blood tranfusions
to patients.  It is united of the top 10 medical inventions of every one of time.  Here is
a savory case by Park, Davis & Co. beneficial to its glass syringes. (11, page 269)

Yet there were side effects.  The vasoconstricting gentry of the medicine caused blood follow to speed up and this increased relationship pressure, and increased the force and defame of the heart.  It in addition caused asthmatics to feel jittery, solicitous and hyper. And while it by stipulation instant relief, this relief only lasted with reference to an hour and a half to pair hours.

The next revolution occurred in 1909 while Parke, Davis & Co. introduced glass ampules that they marketed  in the same proportion that Glaseptic Ampoules.  Ads and articles claimed this made it such accurate doses of the the companies thread of soluble medicine, such as adrenaline, could have ~ing easily and quickly drawn up in ~y emergency using a hypodermic needle and glass syringe.  This was a major successful revolt because prior to this physicians or nurses had to sterilize the give ~ to to mix with the medicine, and they had to construction sure they measured the medicine up correctly.  Each Glaseptic Ampoule “contains a determinate quantity of medicament, an average drench,” according to ads.*** (10, page 68-9)

Adrenaline disintegration as pictured in the 1924 impression of Therapeutic Notes

Also in 1910 British Chemist George Barger (1878-1939) and British Pharmacologist Henry Dale (1875-1968)  reported the employment of adrenaline as an inhalent.  (4, serving-boy 854) Various nebulizers were available, through one of the more common ones inmost nature the Glaseptic Nebulizer marketed by Park-Davis and Company.

Another  declaration of adrenaline being administered by every inhaler came from a London medical practitioner in 1929. (4)( (1, page 156) By this time there were improved nebulizers up~ the body the market such as the Speiss-Drager (Apneu) Nebulizer.  During the 1930s mutable nebulizing products were purchased by physicians to use in their offices, and patients to exercise at home.  The decade in like manner saw the birth of the electric nebulizer, the Pneumovac.  It was many times purchased by pharmacists and the uncomplaining would visit the pharmacy for handling.

Also during this time epinephrine was useful under a variety of brand names, including Adrenaline, Adrenaline Chloride, and Asthma Nefrin.

So the search was on to learn more encircling this medicine, to fine tune it to dispose rid of side effects, to contribute it last longer, and to expose to view better and faster modes of enunciation.

** This will be described in the next post in this series, see “How does epinephrine be” below

***The ampoule was invented in 1886 ~ means of a French pharmacist names Stanislas Limousin.  It was invented in reply to a need by physicians to keep their stock of injectable solutions that became beset with ~y to transport and also deteriorated rapidly due to development of moulds.

Further representation:

1893-1933:  How does epinephrine (adrenaline) operate?

1933-1957: Research leads to asthma redemption medicine

1900-present: The doctrine of development of rescue medicine

Click here during more asthma history.  


Sneader, Walter, “Drug Discovery: A History,” 2005, Wiley, Great Britain,  serving-boy 155-157. (Sneader provides a surpassingly thorough history of the discovery of hormone therapy in the later portion of the 19th centenary.)

” Jockichi Takamine ,” Encyclopedia Britannica.com,  http://www.britannica.com/EBchecked/method of arrangement/581144/Jokichi-Takamine, accessed 3/6/13

Jackson, Mark, “Asthma: A Biography,” 2009, Great Britain, Oxford University Press

Rau, Joseph L., “Inhaled Adrenergic Bronchodilators: Historical Development and Clinical Application,” at AARC.org (American Association of Respiratory Care, July, 2000, Vol. 45, run over 7), pages 854-62

Melland, Brian, “Some Therapeutic Suggestions: Asthma Paroxysms,” Therapeutic Notes, volumes 17 and 18, 1909 and 1910, Park Davis and Company (this snippet is from “Therapeutic Notes, who repeat it from an New England Medical Monthly, July, 2010.  The ab~ article referred to here was published in Lancet, May 21, 2010, 

Euchariste, Chgarles,  de Medici Sajous, John Madison Taylor, John Vietch Shoemaker, editors, “Cyclopedia of Current Literature: Asthma, Spasmotic, Hypodermic Injections of Adrenalin in the usage of,” volume 3, page 476, go over again of Brian Melland’s report from Lancet, May 21, 2010.

Adam, James, “Asthma and its Radical Treatment,” 1913, boy-servant 27 (Adam references from Melland, Lancet, May 21, 2010)

Billings, Frank, George Howitt Weaver, J.H. Salisbury, editors, “Asthma: Treatment,” General Medicine, Volume 1, The Practical Medicine Series Comprising Ten Volumes On The Year’s Progress In Medicine And Surgery, 1911, Chicago, The Year Book Publishers,  page 164

“Adrenaline in Asthma,” Therapeutic Notes, Volumes 17 and 18, 1909 and 1910, page 6

“Already for use, Solutions we it being so that supply in ampules for the propriety of our medical friends,”  Therapeutic Notes, volumes 17 and 18, 1909 and 1910, Park Davis and Company, pages 68 and 69.  Also look to ads on page 59 and pages 259, page 69, page 269 (note: you may be seized of to scroll down a few pages to procure to be to the advertisements)

Rubin, Ronald P., “A Brief History of Great Discoveries in Pharmacology: In Celebration of teh Centennial Anniversary of the Founding of the American Socieity of Pharmacology and Experimental Therapeutics,” Pharmacological Reviews, December, 2007, vol. 59, none. 4, pages 289-359 (This head provides a good history of the discoveries of the pitiful nervous system, the neuromuscular synapse, and for what reason hormones such as adrenaline work)

McFadden, E.R., “A Century of Asthma,” American Journal of Respiratory Critical Care, August 1, 2004, body 170, no. 3, pages 215-221

Bennett, Max R., “History of the Synapse,” Chapter 4: “The disclosure of adrenaline and the concept of autoreceptors and synapses,” 2001, Britain,  Harwood Academic Publishers, pages 65-77, also available at the link: http://citeseerx.ist.psu.edu/viewdoc/download?doi=, accessed 4/14/16

Barnes, Peter J, “Drugs in quest of Asthma,” British Journal of Pharmacology, January, 2006, http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1760737/, accessed up~ the body 4/14/16

Given the keenness of the choice, I’d like to meditate that the choice would be made destitute of the seeming casualness one chooses a Milky Way, Hershey’s, or Snickers.

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