colchicine

/kol-chuh-seen, -sin, kol-kuh-/US // ˈkɒl tʃəˌsin, -sɪn, ˈkɒl kə- //UK // (ˈkɒltʃɪˌsiːn, -sɪn, ˈkɒlkɪ-) //

秋水仙碱,秋水仙素,秋水仙,秋海棠

Definitions

n.名词 noun

1
Pharmacology.
- : a pale yellow, crystalline alkaloid, C22H25NO6, the active principle of colchicum.

It is much stronger than the common extract, and contains the acetate of colchicine.
These reagents precipitate colchicine, but do not affect solutions of digitaline or picrotoxine.
Casper puts the lethal dose of colchicine at from 25 to 30 mgrms.
By cautious evaporation colchicine will be deposited, and maybe purified by re-solution and crystallisation in alcohol.
It is, therefore, evident that there are in man no constant pathological changes from colchicine poisoning.