See also Warning section.

Take this medication by mouth as directed by your doctor, usually twice a day. You may take this medication with or without food, but it is important to choose one way and take this medication the same way with every dose.

The dosage is based on your medical condition and response to treatment. To reduce your risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor's instructions carefully.

Use this medication regularly to get the most benefit from it. To help you remember, take it at the same times each day.

For the treatment of high blood pressure, it may take several weeks before you get the full benefit of this drug. Keep taking this medication even if you feel well. Most people with high blood pressure do not feel sick.

Tell your doctor if your condition does not get better or if it gets worse (your blood pressure readings remain high or increase).