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Granisetron (Group G)

University of Malaya · FDA-approved active Small molecule

Granisetron is a selective serotonin 5-HT3 receptor antagonist that blocks nausea and vomiting signals in the chemoreceptor trigger zone and gastrointestinal tract.

Granisetron is a selective serotonin 5-HT3 receptor antagonist that blocks nausea and vomiting signals in the chemoreceptor trigger zone and gastrointestinal tract. Used for Chemotherapy-induced nausea and vomiting (CINV), Postoperative nausea and vomiting (PONV), Radiation-induced nausea and vomiting.

At a glance

Generic nameGranisetron (Group G)
Also known asantiemetic
SponsorUniversity of Malaya
Drug class5-HT3 receptor antagonist
Target5-HT3 receptor
ModalitySmall molecule
Therapeutic areaOncology, Gastroenterology
PhaseFDA-approved

Mechanism of action

Granisetron works by competitively blocking 5-HT3 receptors on vagal afferent nerves in the gastrointestinal tract and in the chemoreceptor trigger zone of the brain. By preventing serotonin from binding to these receptors, it suppresses the signals that trigger the vomiting reflex, making it highly effective for chemotherapy-induced nausea and vomiting (CINV) and postoperative nausea and vomiting (PONV).

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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