. "Drug Derived from Natural ProductsSYNCI" . "C1907"^^ . "Drug, Natural Product"^^ . "Drug, Natural ProductPTNCI" . "Any drug derived from microorganisms, plants, or animals; also, synthesized versions of these substances or their derivatives.NCI" . "C1512076"^^ . "Drug_Natural_Product"^^ . "Drug, Natural Product"^^ . . "Chemical Viewed Functionally"^^ .