sitosterols

sitosterols

S09-864960 (sī-tŏs′tĕr-ŏls) A group of similar organic compounds that occur in plants. They contain the steroid nucleus, perhydrocyclopentanophenanthrene. The subgroup beta-sitosterols, which are found in saw palmetto and Prunus africana, are used as herbal treatments for benign prostatic hyperplasia and hypercholesterolemia.