Proton pump inhibitors (PPIs) are one of the most widely used medicines in New Zealand; in 2013 omeprazole was the third most commonly dispensed medicine in the community. PPIs are highly effective at reducing symptoms caused by gastric acid, and are generally well tolerated. However, they should not be prescribed indefinitely, without review. PPIs should be used at the lowest effective dose for the shortest possible time. “As needed” use, rather than a regular daily dose, may be appropriate for some patients. Patients should be warned that rebound acid secretion often occurs following withdrawal of treatment, even after periods as short as four weeks. Many patients will be able to manage symptoms during this withdrawal period with alternative medicines, such as antacids.
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