Depresses central nervous system.
Essential oil extracted from the root causes cancer in rats.
The FDA has banned all varieties of this plant for human use. Treats intestinal parasites. Is used as an aphrodisiac. There may be safer, more-effective treatments. Take any medicinal drugs or herbs including aspirin, laxatives, cold and cough remedies, antacids, vitamins, minerals, amino acids, supplements, other prescription or non-prescription drugs.