Fig. 1From: Different dosages of vonoprazan for gastroesophageal reflux disease: study protocol for a pragmatic, crossover-cluster, randomized controlled trial with patient preference armsFlow chart of the study. (1) A regimen: vonoprazan 20Â mg p.o. after breakfast; (2) B regimen: vonoprazan 20Â mg p.o. after dinner; (3) C regimen: vonoprazan 20Â mg p.o. after breakfast and after dinnerBack to article page