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Abstract
Background: The aim of this study was to measure the efficacy of 150-mg ranitidine effervescent tablets compared with 20-mg famotidine wafers in the management of patients presenting to primary care physicians with episodic symptoms of gastro-oesophageal reflux disease (GORD). Methods: The study was of a multicentre, open, randomized, parallel-group design in which 32 Norwegian general practitioners participated. After a pre-treatment demographic and symptom assessment, eligible patients were allocated to either ranitidine effervescent tablet or famotidine wafer. Patients were then provided with the study medication, a stopwatch, and a 2-week symptom diary card. Efficacy was primarily determined by the time to adequate symptom relief for the first symptom episode. Results: In total, 377 patients were recruited to the study; 187 patients received ranitidine effervescent, and 190 received famotidine wafer. More than 50% of the patients had daily GORD symptoms before recruitment. Median time to adequate symptom relief was 15 min in the ranitidine group and 18.5 min in the famotidine group (P = 0.005). Adequate symptom relief within 60 min was reported by 165 (92%) ranitidine patients and 156 (84%) famotidine patients (P=0.02). The number of non-responders after 60 min was twice as great in the famotidine group: 30 (16%) versus 15 (8%). A greater proportion of patients in the famotidine group liked taking the wafer formulation: 173 (94%) versus 126 (70%) (P = 0.001). Conclusion: There was a statistically significant difference in favour of 150-mg ranitidine effervescent tablets in terms of time to adequate symptom relief and the proportion of patients who achieved adequate symptom relief for the first episode. A greater proportion of patients in the famotidine group liked the type of formulation than in the ranitidine group.