Omeprazole Pharmacology

Omeprazole is a proton pump inhibitor that can be commonly used for GERD, PUD, and GI prophylaxis.

Omeprazole can inhibit CYP2C19 which can cause concentrations of drugs like escitalopram and citalopram to rise.

Hypomagnesemia, low B12, osteoporosis, and an increase in C. Diff risk are potential complications with longer term PPI use.

PPI’s like omeprazole are best given 30-60 minutes before meals. This is something that patients often forget.

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