This medicine helps lower high blood pressure by relaxing blood vessels and helping your body remove extra water.
Your doctor will tell you how much to take. They will adjust the dose to control your blood pressure.
Swallow the tablets whole with liquid, usually in the morning. Do not chew or crush them.
Your doctor will decide your maximum daily dose.
Suitable for older adults, with specific precautions. Effectiveness is reduced in renal impairment. Consider risk of orthostatic hypotension and hyponatraemia and -kalemia. (updated 19.5.2025)