Endothelin Receptor Peptide Analogs
Catalog name implying peptide modulators of endothelin receptors; not a recognized class, and products are undocumented.
Overview
Endothelin is a genuine vasoactive peptide that acts on endothelin receptors, which are blocked by established small-molecule antagonists used clinically. Endothelin receptor peptide analogs is not a recognized drug or research class, and no specific products under this name appear in the peer-reviewed literature.
The label appears to conflate unrelated terminology.