section name header

Pronunciation ⬇

pa-lone-O-se-tron

Classifications ⬆ ⬇

Therapeutic Classification: antiemetics

Pharmacologic Classification: five ht3 antagonists

Indications ⬆ ⬇

REMS


Action ⬆ ⬇

  • Blocks the effects of serotonin at receptor sites (selective antagonist) located in vagal nerve terminals and in the chemoreceptor trigger zones in the CNS.
Therapeutic effects:
  • Decreased incidence and severity of nausea and vomiting following emetogenic chemotherapy or surgery.

Pharmacokinetics ⬆ ⬇

Absorption: IV administration results in complete bioavailability.

Distribution: Well distributed to tissues.

Metabolism/Excretion: 50% metabolized by the liver via the CYP1A2, CYP2D6, and CYP3A4 isoenzymes to inactive metabolites; 40% excreted unchanged in urine.

Half-Life: 40 hr.

Time/Action Profile ⬆ ⬇

ROUTEONSETPEAKDURATION
IVwithin 30 minunknown7 days

Contraind./Precautions ⬆ ⬇

Contraindicated in:

Use Cautiously in:

Adv. Reactions/Side Effects ⬆ ⬇

Interactions ⬆ ⬇

Drug-drug:

Route/Dosage ⬆ ⬇

Prevention of Chemotherapy-Induced Nausea/Vomiting

Prevention of Postoperative Nausea/Vomiting

Availability ⬆ ⬇

(Generic available)

Assessment ⬆ ⬇

Lab Test Considerations:

Implementation ⬆ ⬇

IV Administration:

Patient/Family Teaching ⬆ ⬇

Evaluation/Desired Outcomes ⬆ ⬇

US Brand Names ⬆ ⬇

Aloxi, Posfrea

Code ⬆

NDC Code