This medication is used to treat high blood pressure (hypertension).

Dizziness, tiredness, or lightheadedness may occur as your body adjusts to the medication. A runny nose or sore throat may also occur. If any of these effects persists or worsens, tell your doctor or pharmacist promptly.

Patients with high amounts of potassium in the blood, renal artery stenosis, abnormally low blood pressure, and liver problems.