Withania somnifera, known commonly as ashwagandha, Indian ginseng, poison gooseberry, or winter cherry, is a plant in the Solanaceae or nightshade family.
Several other species in the genus Withania are morphologically similar.
Although thought to be useful as a medicinal herb in Ayurveda and sold in many countries as a dietary supplement, there is insufficient scientific evidence that it is safe or effective for treating any disease.
Because of its lack of demonstrated efficacy and possible side effects, it is currently not recommended for any condition.