Enalapril is a medication for cats, dogs, and other small animals, prescribed for the treatment of hypertension, chronic kidney failure, heart failure, and other heart conditions. Enalapril is an ACE (angiotensin-converting enzyme) inhibitor, which is a vasodilator used to lower blood pressure. Enalapril works by blocking an enzyme in the body that creates a substance that causes blood vessels to constrict. When blood vessels constrict, the blood flow decreases, and the blood pressure increases, making the heart work harder to pump blood through the body. By relaxing the blood vessels, Enalapril increases blood flow to the kidneys, lowers blood pressure, lowers the stress on the heart, and reduces fluid build-up in the lungs. Enalapril is available on Vetito veterinary pharmacy in an oral tablet that can be given with or without food. Available in four strengths: 2.5 mg, 5 mg, 10 mg, and 20 mg.