Mydrin
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Mydrin is a mixture of homatropine hydrochloride and ephedrine used as a mydriatic in ophthalmological examinations. It dilates the pupil faster than atropine while lasting for several hours without disrupting accommodation.
Encyclopedia entry (1928–1936)
MYDRIN, Mydrin, a mixture of 0.01 homatropine hydrochloride and 1.0 ephedrine; a white powder, soluble in water. Mydrin dilates the pupil faster than atropine; the dilation lasts for several hours without disrupting accommodation. The dose is 2–3 drops (of a solution of 0.5 Mydrin to 5.0 water) into the eye. It is used in ophthalmoscopic examinations as a mydriaticum.
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“Mydrin.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/mydrin/