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This leaflet is for adults who have been prescribed a proton pump inhibitor (PPI) for indigestion, heartburn or acid reflux. It explains what a PPI is, side effects to watch for, when to seek medical advice, and how to reduce and stop treatment safely if symptoms are controlled.
If you have been asked to hand in home blood pressure readings, please complete this blood pressure diary. Please also read these instructions to ensure that the blood pressure readings you take are as accurate as possible. We usually recommend checking your blood pressure over 7 days, as this gives us enough readings to get a reliable picture of your usual blood pressure.
Page last reviewed: 19 September 2026 Page created: 18 May 2026