Guduchi

Guduchi, also called guruchi, amrita or the heart-leaved moonseed, is a herbaceous vine of the family Menispermaceae, native to South and Southeast Asia. It is a large, deciduous, spreading climber with several long twining branches and simple, heart-shaped leaves. The small greenish-yellow flowers appear when the plant is leafless, on separate male and female plants, and the fruit is reddish. It has been used in Ayurveda in an attempt to treat various disorders, but the page says there is no good evidence that it benefits as a medicine. It contains alkaloids, phytosterols, glycosides and tinosporide. The page also says its use can lead to potentially fatal herb-induced liver injury, that supplements are the highest reported cause of such injury in India, and that investigation showed the toxicity comes from compounds in the plant itself, not from adulteration.