Abstract

Objective: To evaluate the effectiveness and safety of omeprazole compared to lansoprazole in Gastroesophageal reflux disease patients (GERD).


Methods: A systematic search of MEDLINE, EMBASE (inception to December 2019) and CENTRAL (January 2011 to December 2019) was conducted to identify the relevant articles. A detailed inclusion-exclusion criterion was developed and implemented to screen the abstracts. Full texts of the selected abstracts were then assessed to establish their inclusion or exclusion in our review. Cochrane risk of bias criterion was used to assess the methodological quality of the included studies. All relevant data were extracted and the results were summarised narratively.


Results: 9 studies met our inclusion-exclusion criteria and were included in this review.  In all three trials reporting on heartburn and regurgitation, both omeprazole and lansoprazole were found to be effective in relieving the symptoms of heartburn and regurgitation; however, there was no evidence that one is better than the other. Five out of six studies reporting on intragastric pH provided the evidence of omeprazole’s superiority over lansoprazole in controlling gastric pH. Omeprazole lowered intragastric pH faster and the results lasted longer compared to lansoprazole. The results were statistically significant.


Conclusion: There is no significant difference in the clinical effectiveness of omeprazole and lansoprazole in relieving symptoms of heartburn and regurgitation. However, omeprazole is more effective in reducing gastric acidity than lansoprazole.


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