The peptides from the venom of this snake were isolated to develop the first ACEI, captopril.
Borhtrops jararaca, a South American viper, has peptides known to cause hypotension in its prey by inhibition of angiotensin converting enzyme. (https://www.pharmaceutical-journal.com/news-and-analysis/news/from-snake-venom-to-ace-inhibitor-the-discovery-and-rise-of-captopril/10884359.fullarticle?firstPass=false (Accessed 3 June 2020))
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