Hydnocarpus wightianus

Hydnocarpus wightianus (or more commonly Hydnocarpus wightiana) or Chaulmoogra is a tree in the Achariaceae family. Hydnocarpus wightiana seed oil has been widely used in Indian medicine and Chinese traditional medicine for the treatment of leprosy. It entered early Western medicine in the nineteenth century before the era of sulfonamides and other antibiotics for the treatment of several skin diseases and leprosy. The oil was prescribed for leprosy as a mixture suspended in gum or as an emulsion.