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Indications

REMS

Contraind./Precautions

Contraindicated in:

Use Cautiously in:

Adv. Reactions/Side Effects

CV: QT interval prolongation, myocardial ischemia, TORSADES DE POINTES.

Derm: STEVENS-JOHNSON SYNDROME, TOXIC EPIDERMAL NECROLYSIS.

GI: constipation, diarrhea, ↑ liver enzymes, abdominal pain, dry mouth.

Neuro: headache, dizziness, drowsiness, extrapyramidal reactions, fatigue, SEROTONIN SYNDROME, weakness.

Interactions

Drug-Drug:

Availability

(Generic available)

Route/Dosage

see Calculator

Prevention of Nausea/Vomiting Associated With Highly or Moderately Emetogenic Chemotherapy

Hepatic Impairment

Prevention of Postoperative Nausea/Vomiting

Hepatic Impairment

Prevention of Nausea/Vomiting Associated With Radiation Therapy

Hepatic Impairment

US Brand Names

Zuplenz

Action

Therapeutic Effects:

Classifications

Therapeutic Classification: antiemetics

Pharmacologic Classification: five ht3 antagonists

Pharmacokinetics

Absorption: IV administration results in complete bioavailability; 100% absorbed following oral administration.

Distribution: Unknown.

Metabolism/Excretion: Extensively metabolized by the liver (primarily by CYP3A4); 5% excreted unchanged by the kidneys.

Half-life: Adults: 3.5–5.5 hr; Children 5 mo–12 yr: 2.9 hr.

Canadian Brand Names

Ondissolve ODF, Zofran, Zofran ODT

Time/Action Profile

(antiemetic effect)

ROUTEONSETPEAKDURATION
PO, IVrapid15–30 min4–8 hr
IMrapid40 minunknown

Patient/Family Teaching

Pronunciation

on-DAN-se-tron audio

Code

NDC Code*