TEVA LISINOPRIL 10MG is a prescription medication that belongs to the drug class of angiotensin-converting enzyme inhibitors and is used to treat high blood pressure(hypertension),heart failure, and heart attacks. It works by blocking a substance in the body that causes the blood vessels to tighten. As a result, lisinopril relaxes the blood vessels.This lowers blood pressure and increases the supply of blood and oxygen to the heart. Lisinopril is used alone or in combination with other medications to treat high blood pressure.