Butorphanol Injection

Butordyne® Injection consists of butorphanol (as butorphanol tartrate), and is a totally synthetic, centrally acting, narcotic (opioid) agonist–antagonist analgesic with potent antitussive activity. Butorphanol has activity at the κ  receptor as a partial agonist and at at the μ receptor as an antagonist.

On this page
Technical Information

Active Constituent(s)

10 mg/mL Butorphanol as butorphanol tartrate


Analgesic and sedative for use in horses, dogs and cats. In cats, sedation does not occur with Butordyne® Injection alone, but can occur in dogs with Butordyne® Injection alone. Butordyne® Injection may be used in combination with medetomidine hydrochloride and ketamine hydrochloride as a triple anaesthetic in dogs and cats


Dog Cat Horse
Analgesia 0.2-0.3 mg/kg SC/IM/IV 0.4 mg/kg SC/IM 0.1 mg/kg IV
Sedation 0.1 mg/kg* IM/IV 0.4 mg/kg* SC/IM
Premedication 0.1-0.2 mg/kg SC/IM/IV 0.4 mg/kg SC/IM

*Doses used in combination with medetomidine hydrochloride

Withholding Period(s)

NOT TO BE USED in horses intended for human consumption.

Product Codes

Size Code
10 mL 504270
50 mL 520355

Are you a veterinarian?

To view our range of veterinary products please confirm that you are a veterinarian and you will be redirected to our product list.