Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search help
3 results
  1. Prostate Cancer, Nutrition, and Dietary Supplements (PDQ®) - PDQ Cancer Information Summaries - NCBI Bookshelf 
    https://www.ncbi.nlm.nih.gov/books/NBK83261
    ... epicatechin-3-gallate (ECG), but also include oligomeric proanthocyanidins derived from these catechin monomers . Laboratory , preclinical , and ... GTCs include EGCG, EC, EGC, ECG, and oligomeric proanthocyanidins derived from these catechin monomers. Among these compounds, ...
  2. Grape 
    https://medlineplus.gov/druginfo/natural/472.html
    ... insufficiency or CVI). Taking grape seed extract or proanthocyanidin, a chemical in grape seeds, by mouth seems ... bladder in older males. Breast pain (mastalgia). Taking proanthocyanidin, a chemical found in grape seed extract, does ...
  3. Maritime Pine 
    https://medlineplus.gov/druginfo/natural/1019.html
    ... Bark Extract, Oligomères de Procyanidine, Oligomères Procyanidoliques, Oligomeric Proanthocyanidins, OPC, OPCs, PCO, PCOs, Pine Bark, Pine Bark ...