Origin:
Cultivated in West Bengal and Tamil Nadu.

Action:
Antimalarial, febrifuge, astringent, orexigenic, sapasmolytic. Also prescribed in amoebic dysentery, jaundice, atonic dyspepsia, night cramps.

Toxicity
Sometimes causes gastric and intestinal irritation.
Quinine is toxic at over 3 g, quinidine at 1 g.

Khare, C.P./ Indian Medicinal Plants. -- Nueva Dheli: Springer, 2007 . - p. 836.