Yohimbe condensed tannins
Yohimbe condensed tannins, a polyphenol. The astringent condensed-tannin (proanthocyanidin) fraction of yohimbe bark (Pausinystalia johimbe) — oligo/polymeric…
The astringent condensed-tannin (proanthocyanidin) fraction of yohimbe bark (Pausinystalia johimbe) — oligo/polymeric flavan-3-ols built from catechin and epicatechin units. Pharmacognosy describes the bark as tannin-rich and notes the tannins precipitate the bark alkaloids. As a polymeric, ill-defined mixture it has no single molecular weight and no characterised receptor pharmacology.
Class-mixture entry (cf. valepotriates). Yohimbe-bark tannins are documented in pharmacognosy monographs and the EFSA yohimbe assessment but not in a PubMed-indexed primary abstract; refs left empty rather than cite a non-primary source.
Related compounds
- (+)-Catechin — synergistic
- Epicatechin — synergistic