Clinical Uses and Dosage Guidelines
Omeprazole Dosage by Condition
The BNF recommends specific dosing schedules based on the condition being treated. For gastro-oesophageal reflux disease (GORD), the standard dose is 20mg once daily, which may be increased to 40mg if symptoms persist. Duodenal ulcers typically require 20mg daily for 4 weeks, whilst gastric ulcers may need 20-40mg daily for 4-8 weeks. When treating Helicobacter pylori infection, omeprazole is used at 20mg twice daily alongside appropriate antibiotics.
Administration and Timing
Omeprazole should be taken 30-60 minutes before breakfast to maximise effectiveness. The capsules must be swallowed whole with water - crushing or chewing reduces efficacy. For patients with swallowing difficulties, dispersible formulations like Losec MUPS are available through EverydayMeds. Consistent timing helps maintain optimal acid suppression throughout the day.
Treatment Duration Guidelines
The BNF specifies treatment durations ranging from 2-8 weeks for most conditions. Short-term heartburn may require only 2-4 weeks of treatment, whilst healing of erosive oesophagitis typically takes 4-8 weeks. Some patients may require maintenance therapy at the lowest effective dose. Regular review is essential to assess ongoing need and prevent unnecessary long-term use.
Alternative PPI Options
When omeprazole isn't suitable, EverydayMeds stocks alternative PPIs including lansoprazole 15mg, pantoprazole 20mg, and esomeprazole tablets. Each medication has slightly different dosing schedules and may be more appropriate for specific patients. Famotidine tablets offer an H2 receptor antagonist alternative for those who cannot tolerate PPIs.
Monitoring and Side Effects
The BNF highlights important monitoring requirements for long-term omeprazole use, including potential vitamin B12 and magnesium deficiency. Common side effects include headache, nausea, and abdominal pain. Patients should be advised about potential drug interactions, particularly with clopidogrel and warfarin. Regular medication reviews ensure optimal treatment outcomes whilst minimising risks.
