Which of the following is correct about pharmacologic management of gastroesophageal reflux disease (GERD)?

Choice A reason: H2 receptor antagonists such as ranitidine and famotidine are effective for mild GERD symptoms, but they are not considered first-line for moderate to severe GERD. PPIs are preferred due to their superior acid suppression and healing rates for erosive esophagitis. Choice B reason: The American College of Gastroenterology recommends initiating PPI therapy once daily before the first meal of the day for GERD management. PPIs reduce gastric acid secretion by inhibiting the H+/K+ ATPase pump in parietal cells, providing effective symptom relief and mucosal healing. Choice C reason: While some PPIs have undergone scrutiny for long-term safety concerns (e.g., risk of kidney disease, osteoporosis, and infections), they have not been widely recalled. Most remain approved and in use under proper clinical guidance. Choice D reason: H2 receptor agonists do not exist; the correct term is H2 receptor antagonists. Moreover, they are less effective than PPIs for healing erosive GERD and maintaining remission, especially in severe cases.