Bradykinin-potentiating peptide both inhibits the activity of the angiotensin-converting enzyme (ACE) and enhances the action of bradykinin by inhibiting the peptidases that inactivate it. It acts as an indirect hypotensive agent. Synthetic Cdt1a, Cdt1b and the short hexapeptide Cdt3 are able to potentiate the hypotensive effect mediated by Bk on the blood pressure of anesthetized rats. Snake venom natriuretic peptide that exhibits hypotensive and vasodepressor activity. Acts by activating natriuretic receptors (NPR1 and/or NPR2 and/or NPR3) (By similarity). Venom gland. In the N-terminal section; belongs to the bradykinin-potentiating peptide family. In the C-terminal section; belongs to the natriuretic peptide family.