Angiotensin-converting enzyme (ACE) inhibitors were first invented from a chemical in snake venom. Now, that chemical is made in a lab to produce ACE inhibitors.

Scientists found a chemical in the venom of a Brazilian snake. The chemical was found to lower blood pressure. It led to the creation of an ACE inhibitor medicine. The snakes that have this chemical in their venom are rare, so scientists worked to make the chemical in a lab. Using this chemical, they made a safe, effective pill. The FDA approved the first ACE inhibitor to treat high blood pressure in 1982. There are currently several ACE inhibitors available in the US.