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Pronunciation

FEN-ta-nil

Classifications

Therapeutic Classification: opioid analgesics

Pharmacologic Classification: opioid agonists

Indications

High Alert


Unlabeled Use:
  • Continuous IV infusion as part of patient-controlled analgesia.

Action

  • Binds to opiate receptors in the CNS, altering the response to and perception of pain.
  • Produces CNS depression.
Therapeutic effects:
  • Supplement in anesthesia.
  • Decreased pain.

Pharmacokinetics

Absorption: Well absorbed after IM administration. IV administration results in complete bioavailability.

Distribution: Extensively distributed to CNS and tissues.

Metabolism/Excretion: Primarily metabolized by the liver via the CYP3A4 isoenzyme; 10–25% excreted unchanged by the kidneys.

Half-Life: Children: Bolus dose—2.4 hr; long-term continuous infusion—11–36 hr; Adults: 2–4 hr ( after cardiopulmonary bypass and in geriatric patients).

Time/Action Profile

(analgesia*)

ROUTEONSETPEAKDURATION
IM7–15 min20–30 min1–2 hr
IV1–2 min3–5 min0.5–1 hr



*Respiratory depression may last longer than analgesia.



Contraind./Precautions

Contraindicated in:

Use Cautiously in:

Adv. Reactions/Side Effects

CV: arrhythmias, bradycardia, hypotension

Derm: facial itching

EENT: blurred/double vision

Endo: adrenal insufficiency

GI: biliary spasm, nausea, vomiting

MS: skeletal and thoracic muscle rigidity (with rapid IV infusion)

Neuro: confusion, paradoxical excitation/delirium, postoperative drowsiness

Resp: allergic bronchospasm, APNEA, LARYNGOSPASM, RESPIRATORY DEPRESSION (INCLUDING CENTRAL SLEEP APNEA AND SLEEP-RELATED HYPOXEMIA)

Misc: allodynia, opioid-induced hyperalgesia

Interactions

Drug-drug:

Route/Dosage

Preoperative Use

Adjunct to General Anesthesia

Adjunct to Regional Anesthesia

Postoperative Use (Recovery Room)

General Anesthesia

Sedation/Analgesia

Availability

(Generic available)

Assessment

Lab Test Considerations:

Toxicity and Overdose:

Implementation

IV Administration:

Patient/Family Teaching

Evaluation/Desired Outcomes

US Brand Names

Sublimaze

Contr. Subst. Schedule

Schedule II (C-II)