What is "wrightine"

Wrightine \Wright"ine\, n. (Chem.) A rare alkaloid found in the bark of an East Indian apocynaceous tree ( Wrightia antidysenterica), and extracted as a bitter white crystalline substance. It was formerly used as a remedy for diarrh[oe]a. Called also conessine, and neriine.

n. (context organic compound English) A rare alkaloid found in the bark of an East Indian apocynaceous tree (''Wrightia antidysenterica'').