• R Jones and S L Crouch.
• UMDS (Guy's and St Thomas'), London, UK.
• Aliment. Pharmacol. Ther. 1999 Mar 1; 13 (3): 413-9.

AimTo compare the relative efficacies of lansoprazole 15 mg o.m. and omeprazole 10 mg o.m. in relieving heartburn and epigastric pain in patients with acid-related dyspepsia. In addition, the study compared the safety profiles of the two treatments.MethodsThis double-blind, parallel group, randomised, multicentre study was conducted in 52 general practices in the UK. A total of 609 patients was recruited, 562 of whom were eligible for inclusion in the intention-to-treat analysis. All of the patients had experienced at least mild heartburn or mild epigastric pain persistently on at least 4 of the previous 7 days; patients with severe symptoms were excluded. 283 patients received lansoprazole 15 mg and 279 received omeprazole 10 mg, both for 4 weeks. The main efficacy measure was relief of symptoms, based on physician assessments.ResultsIn the intention-to-treat population, a complete relief of overall primary symptoms of dyspepsia was achieved after 2 weeks in 53% of patients receiving lansoprazole and in 41% of patients receiving omeprazole (P = 0.007). After 4 weeks, 59% of the lansoprazole group and 51% of the omeprazole group had achieved complete symptom relief (P = 0. 078). Antacids were taken for additional relief of symptoms in fewer patients given lansoprazole compared to the omeprazole group in the third and fourth weeks (P = 0.035) and also significantly fewer antacids were taken by patients in the lansoprazole group compared with patients in the omeprazole group (P = 0.033). The proportion of patients reporting adverse events was similar in both groups.ConclusionLow-dose lansoprazole is more effective than low-dose omeprazole in the treatment of patients with mild heartburn or epigastric pain in general practice.

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