As with other drugs, ondansetron can cause side effects ... The typical starting dose for adults is 8 mg. The drug’s manufacturer does not provide information about dose-dependent side effects.

Ondansetron (as base) 4mg, 8mg; strawberry flavor; contains phenylalanine. Ondansetron is a selective 5-HT3 receptor antagonist. Serotonin receptors of the 5-HT3 type are present both peripherally ...

Ondansetron (as HCl dihydrate ... Moderately emetogenic chemotherapy: 8mg every 8hrs for 2 doses beginning 30 mins before chemotherapy, then 8mg every 12hrs for 1–2 days after chemotherapy ...

According to the Cleveland Clinic, Zofran is the brand name of a medication named ondansetron solution, which prevents nausea and vomiting caused by radiation, chemotherapy, or surgery.