Derives from tsitsirikaplantsand alpasotis. A common herb found to be effective in helping prevent cancer.
The leaves yield of volatile oil containing aldehyde sesquiterpenes, furfural, sulphur containing compounds and an alcohollochnerol. The plant contains amorhous alkaloidk, vincarosin. The anti-cancerdrugs, vincristine and vinblastine, are derived from the alkaloids of periwinkle.Alpasotis constituents are anthraglycosides ,cinnamic acid derivatives , mucins and pestins ,saponins ,amygdalin, ascaridol , geraniol,cymene , terpinine.