hydras tin

(hi-dras’tin). 1. An alkaloid from hydrastis, C,,NH,,0,. Dose, ἐς-ἰ gr. (0.004-0.016 gm.); of hydro chlorate or sulphate, ts} er. (0.004- 0.016 gm.); of concentration, 4-2 gr. (0.033-0.133 gm.) 2. A precipitate or concentration from hydrastis. Dose, 5-10 gr. (0.333-0.666 gm.).