section name header

Pronunciation

za-NA-mi-veer

Classifications

Therapeutic Classification: antivirals

Pharmacologic Classification: neuraminidase inhibitors

Indications

REMS


Action

  • Inhibits the enzyme neuraminidase, which may alter virus particle aggregation and release.
Therapeutic effects:
  • Reduced duration or prevention of flu-related symptoms.

Pharmacokinetics

Absorption: 4–17% of inhaled dose is systemically absorbed.

Distribution: Unknown.

Protein Binding: <10%.

Metabolism/Excretion: Mainly excreted by kidneys as unchanged drug; unabsorbed drug is excreted in feces.

Half-Life: 2.5–5.1 hr.

Time/Action Profile

(blood levels)

ROUTEONSETPEAKDURATION
Inhalationrapid1–2 hr12 hr





Contraind./Precautions

Contraindicated in:

Use Cautiously in:

Adv. Reactions/Side Effects

Neuro: abnormal behavior, agitation, delirium, hallucinations, nightmares, SEIZURES

Resp: bronchospasm

Misc: HYPERSENSITIVITY REACTIONS (INCLUDING ANAPHYLAXIS AND ANGIOEDEMA)

Interactions

Drug-drug:

Route/Dosage

Treatment of Influenza

Prophylaxis of Influenza

Availability

Assessment

Implementation

Patient/Family Teaching

Evaluation/Desired Outcomes

US Brand Names

Relenza