General information
This guide is based on publicly available information from official sources, including the Pharmaceutical Benefits Scheme, Services Australia, Healthdirect and other Australian Government health and pharmacy bodies. It is general information, not personal medical advice, and may change over time. With any medicine, always read the label and use only as directed, and if symptoms persist see your doctor or health care professional. Check anything that affects you with your pharmacist or GP. In an emergency, call 000.
Veterinary compounding is the preparation of a medicine for one animal, on a veterinarian's prescription, by a registered Australian pharmacy. It is used when a commercial product does not fit the species, the dose, or what the animal will accept: a cat that refuses tablets, an exotic pet that needs a dose no manufacturer makes, or a horse that needs a preparation the commercial range does not cover. A registered vet is always the prescriber. For the wider framework, see our pillar guide on compounding pharmacy in Australia.
When veterinary compounding is used
Most medicines a vet prescribes are commercial products the Australian Pesticides and Veterinary Medicines Authority (APVMA) has registered for the species. Compounding covers the situations those products do not. A vet may write a compounded prescription where there is no commercial equivalent for the species, where the animal needs a dose far below the smallest commercial strength (a guinea pig, a ferret, or a bird, for instance), where palatability is the barrier and a flavoured liquid or gel makes the dose one the animal will take, where two active ingredients are wanted in one preparation, or where a product has been discontinued but is still the right treatment. The vet decides that compounding is the right route; the pharmacy prepares what the vet writes.
A compounded veterinary medicine is mixed for the individual patient on the vet's script rather than made in advance, which is why it arrives without a commercial product's box or brand.
The species compounders prepare for
Australian veterinary compounders work across a wide range of animals, though not every pharmacy covers every species: one that regularly prepares cat medicines may not have the equipment or experience for horses. Cats are often given transdermal gels or flavoured liquids when they refuse tablets. Dogs take flavoured chews, liquids, and capsules at custom doses. Exotic pets, from reptiles and birds to rabbits and ferrets, usually need micro-dose suspensions no commercial product supplies. Horses need larger-volume oral pastes and feed powders suited to a 500-kilogram patient, and medicines are occasionally compounded for livestock where commercial products fall short. Because the equipment and experience differ by species, it is worth asking a compounder which animals they regularly prepare for before you order.
Why a vet must prescribe
Under state control-of-use legislation and the Australian Veterinary Association's guidelines, a compounded animal medicine can only be dispensed on a prescription from a registered veterinarian, for an animal under that vet's care, and the pharmacy cannot supply it without a valid script. The prescription sets out the species, age, and weight of the animal, the active ingredient and strength, the form (a liquid, a capsule, a transdermal gel, or a paste), the dose and frequency, the total quantity, and the owner's details. With a valid script you can take it to any registered compounding pharmacy that prepares veterinary medicines, and some accept scripts from interstate vets registered with the relevant veterinary board. For finding a vet in the first place, the Australian Veterinary Association lists members at ava.com.au.
Flavours and formats
Getting an animal to accept its medicine is often the whole challenge, so flavour is one of the most common reasons a vet compounds. A medicine an animal refuses does not work. What suits an animal varies: cats, as obligate carnivores, take savoury flavours like fish or chicken rather than sweet ones; dogs generally accept chicken, beef, liver, or peanut butter; horses take apple, molasses, or peppermint in a paste; rabbits and guinea pigs do better with vegetable or hay-friendly bases; and reptiles need little flavouring at all. The compounder confirms what they can prepare when you present the prescription, so it helps to mention any flavour the animal has rejected before.
| Format | Suits | Notes |
|---|---|---|
| Transdermal gel | Cats that refuse oral medicines | Applied to the hairless inner ear; not suitable for every active ingredient |
| Flavoured liquid or suspension | Cats, dogs, exotic pets | Measured with a syringe |
| Flavoured chew | Dogs | The active ingredient is set into a treat |
| Oral paste | Horses | A syringe-style applicator graduated by weight |
| Capsule | Animals that swallow reliably | Often given in food |
illustrative; the prescribing vet and the compounder choose the format together, and options vary by pharmacy and animal.
How the rules work
Compounded veterinary medicines sit under a different framework to registered animal products. The APVMA registers commercial veterinary products, but a medicine compounded by a pharmacist on a vet's prescription is exempt from APVMA registration, because it is made for a single patient rather than sold as a product. The compounder is instead regulated by the Pharmacy Board of Australia and its Guidelines on Compounding of Medicines, in effect since 1 October 2024, and by each state's control-of-use legislation, with the Australian Veterinary Association's 2020 guidelines on compounded pharmaceuticals setting the professional expectations. The vet holds the clinical decision, the pharmacist is responsible for the preparation, and you store and give the medicine as the label and the vet direct.
How to find a veterinary compounder
The quickest route is your own vet, since most practices already work with one or two compounders they trust. You can also search the Pharmacy Finder directory for pharmacies offering compounding and ask whether they prepare veterinary medicines, or check the Australian Society of Compounding Pharmacists at ascp.net.au. A short call before you commit confirms the fit.
- Whether they regularly prepare veterinary, not only human, medicines.
- Whether they cover your animal, whether a cat, an exotic pet, a horse, or livestock.
- Whether they can prepare the form your vet wants, whether a transdermal gel or a flavoured liquid.
- How long the preparation takes, and whether they post it or you collect.
For locating compounders more generally, our guide on finding a compounding pharmacy by city maps where they cluster.
Talk to someone now
Free advice for questions about a medicine, dose, or interaction.
Frequently asked questions
No. Compounding starts with the vet: they make the clinical call and write the script, and without one the pharmacy has nothing to work from.
