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Anaesthetic Injection for Dogs and Cats

Alfaxan contains the active ingredient alfaxalone, a neurosteroid molecule with the properties of a general anaesthetic. Alfaxan is presented as a clear, colourless, aqueous solution, with a pH of 6.5 – 7 in 10 mL or 20 mL vials. It is registered for use in dogs and cats for both the induction and maintenance of anaesthesia.

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Technical Information
Downloadable Resources

Australia’s number one anaesthetic induction agent, Alfaxan produces rapid, controlled, and short-acting induction of anaesthesia in dogs and cats. With minimal, dose-dependent impact on cardiac and pulmonary function, Alfaxan has a wide safety margin and is rapidly cleared, resulting in a predictable, clear-headed recovery.

Technical Information

Active Constituent(s)

10 mg/mL Alfaxalone


Alfaxan is an injectable steroid anaesthetic for use in dogs and cats. Alfaxan can be used:

  • As an induction agent prior to gaseous anaesthesia, or
  • As a sole anaesthetic agent for the induction and maintenance of anaesthesia for the performance of examination or surgical procedures.

The intramuscular route is useful to induce sedation in the cat to facilitate handling, detailed clinical examination and the practice of any procedure that requires a high degree of restraint rather than complete surgical anaesthesia.


Induction Dose

Premedicated Unpremedicated
Dogs: 2 mg/kg Dogs: 3 mg/kg
Cats: 5 mg/kg Cats: 5 mg/kg

Maintenance Dose

Premedicated Unpremedicated
Dogs: 6-7 mg/kg/hr (0.10-0.12 mg/kg/minute) Dogs: 8-9 mg/kg/hr (0.13-0.15 mg/kg/minute)
Cats: 7-8 mg/kg/hr (0.11-0.13 mg/kg/minute) Cats: 10-11 mg/kg/hr (0.16-0.18 mg/kg/minute)

Product Codes

Size Code
20 mL 520400
10 mL 502135