Comparative Pharmacology
Head-to-head clinical analysis: ZOFRAN AND DEXTROSE IN PLASTIC CONTAINER versus ZOFRAN ODT.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ZOFRAN AND DEXTROSE IN PLASTIC CONTAINER versus ZOFRAN ODT.
ZOFRAN AND DEXTROSE IN PLASTIC CONTAINER vs ZOFRAN ODT
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Ondansetron is a selective serotonin 5-HT3 receptor antagonist. It blocks the action of serotonin at 5-HT3 receptors in the chemoreceptor trigger zone (CTZ) and gastrointestinal tract, thereby preventing nausea and vomiting. Dextrose provides caloric support.
Selective antagonist of serotonin 5-HT3 receptors, blocking serotonin binding in the chemoreceptor trigger zone and gastrointestinal tract, thereby inhibiting emesis.
4 mg IV or IM every 8 hours as needed; for prevention of chemotherapy-induced nausea and vomiting, 0.15 mg/kg IV up to 16 mg per dose, infused over 15 minutes, given 30 minutes before chemotherapy, then repeat at 4 and 8 hours after first dose, or as a single 32 mg IV dose over 15 minutes immediately before chemotherapy.
8 mg orally disintegrating tablet (ODT) 30 minutes before chemotherapy; for prevention of nausea/vomiting, 8 mg orally twice daily.
None Documented
None Documented
Terminal elimination half-life is approximately 3–4 hours in adults, though may be prolonged to 5–8 hours in severe hepatic impairment (Child-Pugh class C) or elderly patients.
Terminal elimination half-life approximately 3–6 hours in adults; prolonged to 8–15 hours in patients with severe hepatic impairment (Child-Pugh C) due to reduced clearance.
Primarily hepatic metabolism (~95%) via CYP1A2, CYP2D6, and CYP3A4; less than 10% excreted unchanged in urine. Fecal excretion accounts for ~20% of metabolites.
Renal (47% as unchanged drug and metabolites, primarily glucuronide conjugates) and hepatic metabolism; about 25% excreted in feces; less than 10% excreted unchanged in urine.
Category C
Category C
Antiemetic (5-HT3 Antagonist)
Antiemetic (5-HT3 Antagonist)