Absorption: Well absorbed after IM and subcut administration.
Distribution: Probably crosses the placenta and enters breast milk.
Protein Binding: 50%.
Metabolism/Excretion: Mostly metabolized by the liver and eliminated in the feces via biliary excretion. Minimal amounts excreted unchanged by the kidneys.
Half-life: Children 18 yrs: 0.9 hr; Adults: 3.55 hr.
Contraindicated in:
Use Cautiously in:
CV: hypertension, orthostatic hypotension, palpitations.
Derm: clammy feeling, sweating.
EENT: blurred vision, diplopia, miosis (high doses).
Endo: adrenal insufficiency.
GI: dry mouth, nausea, vomiting, constipation, ileus.
GU: urinary urgency.
Neuro: dizziness, headache, sedation, confusion, dysphoria, euphoria, floating feeling, hallucinations, unusual dreams.
Resp: RESPIRATORY DEPRESSION (INCLUDING CENTRAL SLEEP APNEA AND SLEEP-RELATED HYPOXEMIA).
Misc: physical dependence, psychological dependence, tolerance.
Drug-Drug:
Drug-Natural Products:
Analgesia
Supplement to Balanced Anesthesia
IV Administration:
Therapeutic Classification: opioid analgesics
Pharmacologic Classification: opioid agonists analgesics
(analgesia)
ROUTE | ONSET | PEAK | DURATION |
---|---|---|---|
IM | <15 min | 60 min | 36 hr |
Subcut | <15 min | unknown | 36 hr |
IV | 23 min | 30 min | 36 hr |
NDC Code*