This medicine helps lower high blood pressure by relaxing blood vessels.
The usual starting dose is one 10 mg tablet once a day; your doctor may increase it to 20 mg or 40 mg daily. For mild to moderate kidney issues, the maximum is 20 mg once daily.
Take the tablet with a glass of water, with or without food. Try to take it at the same time each day, for example, with breakfast.
The maximum daily dose is usually 40 mg, but no more than 20 mg for patients with kidney problems.
Suitable for older adults, with specific precautions. Reduce the dose in moderately severe renal impairment. Monitor renal function and potassium concentrations during the pharmacotherapy. Avoid concurrent use of NSAIDs. (updated 14.4.2025)