This section is from the book "Recent Materia Medica: Notes On Their Origin And Therapeutics", by F. Harwood Lescher. Also available from Amazon: Recent materia medica.
Hydrobromate of Homatropine. C16H21N03, HBr.
Homatropine is an alkaloid obtained by Prof. Ladenburg by action of hydrochlorates on tropine amygdalate (phenyl) or benzo glycolic acid. White crystalline flakes, soluble in 6 parts of cold water; much weaker than Atropine.
ThekapeUtics. The hydrochlorate is used in eye practice. In solution of 2 to 6 grains to the ounce, it widens the pupil of the eye and paralyses the ciliary muscle, the pupil of the eye losing the power of contraction and dilation; this disappears in a few hours, constitutionally disturbing less than atropine or duboisine. Dose, 1/80 to 1/20 grain. Homatropine sulphate, hydrochlorate, and salicylate are similarly employed.
 
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