Tegaserod Products | Cleanchem - Tegaserod is a selective serotonin 5-HT4 receptor partial agonist that stimulates gastrointestinal motility and secretion. It is used to treat irritable bowel syndrome with constipation (IBS-C) and chronic idiopathic constipation. By enhancing peristalsis and modulating visceral sensation, it provides relief from abdominal discomfort and bloating.