fen-il-EFF-rin
Therapeutic Classification: vasopressors
Pharmacologic Classification: adrenergics, alpha adrenergic agonists, vasopressors
High Alert
Absorption: Well absorbed from IM sites. IV administration results in complete bioavailability.
Distribution: Widely distributed to tissues.
Half-Life: 2.5 hr.
(vasopressor effects)
| ROUTE | ONSET | PEAK | DURATION |
|---|---|---|---|
| IV | immediate | unknown | 15–20 min |
| IM | 10–15 min | unknown | 0.5–2 hr |
| SUBQ | 10–15 min | unknown | 50–60 min |
Contraindicated in:
Use Cautiously in:
CV: ARRHYTHMIAS, bradycardia, chest pain, hypertension, ischemia, tachycardia
Derm: pruritus
GI: epigastric pain, nausea, vomiting
Local: phlebitis, sloughing at IV sites
Neuro: blurred vision, headache, insomnia, nervousness, tremor
Resp: dyspnea
Drug-drug:
Hypotension
Hypotension During Anesthesia
Vasoconstrictor for Regional Anesthesia
Prolongation of Spinal Anesthesia
IV Administration:
NDC Code