Details About Overdose or Poisoning Generic Salt :: Ondansetron Ondansetron Drug Pharmacology :: I. Pharmacology. Ondansetron is a selective serotonin 5-HT3receptor antagonist with powerful antiemetic activity both centrally atthe chemoreceptor trigger zone and peripherally at vagal nerveterminals. The onset is about 30 minutes after an intravenous dose and60–90 minutes after an oral...
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