A Comprehensive Review on Omeprazole: Pharmacological Effects and Its Adverse Effects
Abstract
Omeprazole, a widely used proton pump inhibitor (PPI), has become a cornerstone in the treatment of various acid-related gastrointestinal disorders such as gastroesophageal reflux disease (GERD), peptic ulcers, and Zollinger-Ellison syndrome. By inhibiting the proton pump in parietal cells, omeprazole effectively reduces gastric acid secretion, thereby promoting healing and alleviating symptoms associated with hyperacidity. This review aims to provide a comprehensive overview of the pharmacological actions, therapeutic uses, and potential adverse effects of omeprazole. The drug’s mechanism of action, pharmacokinetics, and clinical applications in both acute and chronic conditions are discussed in detail. Additionally, attention is given to the adverse effects associated with its prolonged use, including but not limited to gastrointestinal disturbances, nutrient deficiencies, renal complications, and an increased risk of infections. The balance between its therapeutic benefits and associated risks is explored, with a focus on the clinical decision-making process in prescribing omeprazole. The review also highlights the potential for drug interactions, particularly with medications that alter gastric pH or are metabolized via the cytochrome P450 enzyme system. Overall, while omeprazole remains a highly effective therapeutic agent, its adverse effects necessitate careful consideration, particularly in long-term use or in vulnerable patient populations.
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