Naloxone Hydrochloride Dosage Calculator

Naloxone Hydrochloride Dosage for dogs, Cats, Horses By Weight
Trade Names: Narcan, Trexonil, Opioid antagonist
Functional classification: Opioid Antagonist

Naloxone Hydrochloride Dosing for dogs, Cats, Horses By Weight

Important Safety Information

For horses: Duration of effect is only 20 minutes. Monitor closely for recurrence of opioid effects.

Use with caution and titrate to effect. Rapid reversal of opioids may cause withdrawal symptoms.

Reference Source

Saunders Handbook of VETERINARY DRUGS, Page 579-580

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Standard Dosage Guidelines

Small Animal Dosage

Species Route Dosage Frequency
Dogs IV, IM, SQ 0.01-0.04 mg/kg As needed to reverse opiate
Cats IV, IM, SQ 0.01-0.04 mg/kg As needed to reverse opiate

Large Animal Dosage

Species Route Dosage Frequency
Horses IV 0.02-0.04 mg/kg Duration of effect is only 20 minutes

Additional Information

Low dose to partially reverse dysphoric reaction: Administer 1 mL every 30 seconds (0.04 mg/mL solution) as needed.