Naloxone (Narcan)

Toxicology (Opioid Antagonist)

Dosing & Administration

Adult Dose

0.4-2 mg IV/IM/IN every 2-3 mins PRN. (IN is typically 4 mg/spray).

Pediatric Dose

0.1 mg/kg IV/IM/IN (max 2 mg/dose).

Renal Adjustment

No adjustment necessary.

Hepatic Adjustment

No adjustment necessary.

Safety & Special Populations

Pregnancy Category

B

Lactation Safety

Compatible.

Contraindications & Adverse Effects

Contraindications

  • Hypersensitivity

Common Adverse Effects

  • Acute opioid withdrawal (agitation, N/V, tachycardia)