Omeprazole use in children
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Omeprazole Use in Children: Indications and Effectiveness
Omeprazole, a proton pump inhibitor (PPI), is widely used in children to treat acid-related disorders such as gastroesophageal reflux disease (GERD), erosive esophagitis, peptic ulcers, and Helicobacter pylori (HP) infection. Studies consistently show that omeprazole is effective in healing esophagitis and controlling symptoms in children, including those who do not respond to other treatments like histamine-2 receptor antagonists or prokinetic agents Zimmermann2001Gunasekaran1993Hassall2000+3 MORE. It is also used for refractory acid-related diseases and has shown potent antisecretory effects .
Dosage and Administration of Omeprazole in Pediatric Patients
The effective dose of omeprazole in children is generally higher per kilogram of body weight than in adults. Most studies recommend starting at 0.7 mg/kg per day, with some children requiring up to 3.5 mg/kg per day for adequate acid suppression and healing of esophagitis Gunasekaran1993Hassall2000Bishop2007+2 MORE. In infants and children under 2 years, the majority respond to 0.7 mg/kg per day, but some may need higher doses up to 2.8 mg/kg per day . Dosing can be based on body weight, with simplified regimens (e.g., 20 mg daily for children under 30 kg, 40 mg for those over 30 kg) also proving effective . For eosinophilic esophagitis, high doses (up to 1 mg/kg twice daily) have been used, with some patients achieving remission .
Safety and Tolerability of Omeprazole in Children
Omeprazole is generally well tolerated in children, with a low incidence of adverse effects reported in both short-term and long-term use Zimmermann2001Gunasekaran1993Hassall2000+3 MORE. Mildly elevated liver enzymes and increased fasting gastrin levels have been observed, but their long-term significance is unclear . Some studies report rare side effects such as diarrhea, diplopia, or asymptomatic esophageal candidiasis . Electrolyte disturbances, including hypomagnesemia, hypocalcemia, and hypernatremia, have been noted after prolonged use, though these are often asymptomatic and should be monitored during therapy .
Pharmacokinetics and Age-Related Considerations
Children, especially those aged 1–6 years, metabolize omeprazole more rapidly than adults, which explains the need for higher per-kilogram doses to achieve therapeutic effects . Plasma concentrations and drug exposure are lower in younger children, supporting the use of weight-based dosing .
Regulatory and Regional Guidelines
While omeprazole is well-studied and widely used in pediatric populations globally, local regulatory guidelines may restrict its use for certain indications or age groups. For example, in Russia, omeprazole is only approved for specific conditions in children, and off-label use requires careful consideration of national guidelines .
Conclusion
Omeprazole is an effective and generally safe treatment for acid-related disorders in children, including GERD, erosive esophagitis, and HP infection. Dosing should be individualized based on body weight and clinical response, with higher doses often required compared to adults. Regular monitoring for potential side effects, especially with long-term use, is recommended. Further long-term studies are needed to fully establish the safety profile of omeprazole in pediatric patients.
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Most relevant research papers on this topic
A review of omeprazole use in the treatment of acid-related disorders in children.
Omeprazole has been effective and well-tolerated for treating esophageal and peptic ulcer disease in children, particularly those who failed to respond to previous treatment with histamine 2-receptor antagonists.
Effect of omeprazole in the treatment of refractory acid-related diseases in childhood: endoscopic healing and twenty-four-hour intragastric acidity.
Omeprazole is a suitable short-term treatment for refractory acid-related diseases in children, with a low dose (0.6 mg/kg per day) being optimal for most patients.
Pharmacokinetics of orally administered omeprazole in children
Orally administered omeprazole in children has a higher metabolic capacity with decreasing age, leading to higher doses per kilogram of body weight compared to adults.
Electrolyte disturbances in children receiving omeprazole for gastroesophageal reflux disease
Long-term use of omeprazole in children with gastroesophageal reflux disease may cause asymptomatic hypomagnesemia, hypocalcemia, and hypernatremia, requiring monitoring.
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