BNF Omeprazole Dosage and Administration Guidelines
Standard Omeprazole Dosing According to BNF
The British National Formulary (BNF) provides clear guidelines for omeprazole administration. For acid reflux and gastro-oesophageal reflux disease (GORD), the standard dose is 20mg once daily. This may be increased to 40mg daily if symptoms persist after 4 weeks. EverydayMeds stocks omeprazole 20mg capsules following these established protocols.
When and How to Take Omeprazole
Take omeprazole 30-60 minutes before food, ideally before breakfast. This timing allows the medication to block acid pumps before they become active during meals. Swallow capsules whole with a full glass of water. Never crush, chew, or open capsules as this affects the enteric coating designed to protect the active ingredient from stomach acid.
Treatment Duration and Monitoring
According to BNF guidelines, initial treatment typically lasts 4 weeks for acid reflux symptoms. For GORD with oesophagitis, treatment may extend to 8 weeks. Long-term maintenance therapy should only continue under medical supervision. Patients should review their treatment regularly with healthcare providers to assess ongoing need.
Alternative PPI Options Available
If omeprazole proves unsuitable, alternative proton pump inhibitors include lansoprazole 15mg or pantoprazole 20mg tablets. EverydayMeds also provides esomeprazole tablets and famotidine as an H2 receptor antagonist alternative. Losec MUPS 20mg offers a branded omeprazole option for patients preferring dispersible tablets.
Important Safety Considerations
Before starting omeprazole, inform your prescriber about other medications, particularly warfarin, clopidogrel, or phenytoin, as interactions may occur. Long-term use may increase risk of bone fractures or vitamin B12 deficiency. The BNF recommends using the lowest effective dose for the shortest duration necessary to manage symptoms effectively.










