Periwinkle Essential Oil


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Periwinkle Essential Oil


  • ¬†The leaf juice or water decoction of Catharathus roseus L. (Apocyanaceae) is used as a folk medicine for the treatment of diabetes all over the world.
  • In the present investigation, the leaf juice of C. roseus has been evaluated for its¬†hypoglycemic activity in normal and alloxan-induced diabetic rabbits.


  • The present study clearly indicates a significant antidiabetic activity with the leaf juice of Catharanthus roseus and supports the traditional usage of the fresh leaves by Ayurvedic physicians for the control of diabetics.

The leaves yield a volatile oil content of:

  • Aldehyde
  • Sesquiterpenes
  • Furfural
  • Sulphur-containing compounds and an alcohol
  • Lochnerol

Photo credit: Dolf Cheng