Ondansetron dosing
Antiemetics · 2 mg/mL · IV Push
Calculated, not generatedWeight-based dose
| Dose | Per kg | For 70 kg |
|---|---|---|
| low | 0.05 mg/kg | 3.5 mg |
| standard | 0.1 mg/kg | 7 mg |
| high | 0.15 mg/kg | 10.5 mg |
Typical: 4 mg
Renal & hepatic adjustment
No drug-specific organ adjustment in our database — use clinical judgment and verify against the label.
Onset, duration & pearls
Onset15-30 min
Duration4-8 hr
Side effects: QTc prolongation, Headache, Constipation.
- Give at end of surgery for best antiemetic effect
- Max 16 mg/day, caution with QTc drugs
Evidence A · Multiple RCTs for PONV prophylaxis
More antiemetics
Get the exact dose for your patient
Vigil computes Ondansetron for your patient's actual weight — and adjusts for renal or hepatic impairment automatically, with the cited rationale. The number is calculated from a verified database, never guessed.
Decision support for licensed clinicians — not a substitute for clinical judgment. Always verify against the package insert and the patient in front of you.