“…Antacids, alginates, histamine (H 2 ) receptor blockers, or proton pump inhibitors (PPIs) are typically a firstline medical treatment for patients with GERD [1,[38][39][40]. In recent years, PPIs, e.g., omeprazole, which work by covalently binding to the proton pumps that control the final step of gastric acid production, thereby decreasing it, have become the treatment of choice for patients with GERD, with a number of studies showing superiority over H 2 receptor blockers [5,38,[41][42][43][44][45][46][47][48][49]. Typically, a standard dose of a PPI provides complete relief in approximately 70 to 80% of patients with GERD within a week [1,[50][51][52][53], with limited differences in effectiveness between twice-daily and once-daily PPIs [54].…”