Rauvolfia serpentina


rauwolfia

Herbal medicine
A plant native to India that contains reserpine, an alkaloid. Rauwolfia is antipyretic and emmenagogic; it has been used as an ayurvedic herbal medicine for depression, diarrhoea, colic in infants and hypertension. It has also been used as an antidote to snake poison. 
Toxicity
Abdominal cramps, diarrhoea, oedema, hypotension, sedation, coma, possibly death.