What is the primary indication for prescribing Propulsid?

Propulsid, known generically as cisapride, is primarily indicated for treating gastroesophageal reflux disease (GERD). This condition involves the backflow of stomach contents into the esophagus, resulting in symptoms like heartburn and discomfort. Cisapride works by enhancing gastrointestinal motility, which helps to increase the pressure in the lower esophageal sphincter, reducing the likelihood of reflux and improving symptoms associated with GERD.

In contrast, while gastric ulcers and chronic constipation may warrant specific treatments, they are not the primary indications for Propulsid. Gastric ulcers typically require acid-reducing medications or protective agents, while chronic constipation is usually managed with laxatives or dietary modifications. Diarrhea also has distinct treatments targeting the underlying cause and may not benefit from cisapride's mechanism of action, which is focused on promoting gastric motility rather than directly addressing fluid and electrolyte balance in the intestines. Thus, the most appropriate use of Propulsid aligns with the management of GERD.