Money
Vet prescription medication and dispensing fees: what the CMA found
Last updated 3 May 2026
Quick answer
UK vet practices charge a dispensing fee on prescription medication on top of the medication itself. The CMA's 2024 market investigation identified medication margins as a substantial profit centre and ordered that practices disclose the dispensing fee and inform pet owners of their right to obtain medication elsewhere via a written prescription.
When your vet prescribes medication, the bill typically has three parts: the cost of the medication itself, a dispensing fee charged by the practice for handling and dispensing it, and (sometimes) a separate written-prescription fee if you ask for the prescription to take elsewhere. The CMA's market investigation looked closely at this, found significant consumer harm, and ordered specific remedies.
What the CMA found
The CMA's 2024 final report identified prescription medication as a substantial profit centre for many UK vet practices. The investigation found that:
- Medication dispensed by practices was commonly priced materially above what the same medication cost from online pharmacies or other dispensaries.
- Pet owners were often not told that they had the right to a written prescription that could be filled elsewhere for less.
- Where practices did offer written prescriptions, they often charged a separate “written prescription fee” that reduced or removed the saving.
- Long-term and chronic medication — heart, thyroid, diabetes, arthritis — was where the cost differential mattered most, because the medication is dispensed monthly for the rest of the pet’s life.
What the remedies require
The CMA ordered that every UK vet practice must disclose the dispensing fee charged on prescription medication, and must inform pet owners of their right to a written prescription that can be filled elsewhere. The order also constrains the level of any separate written-prescription fee so it cannot effectively offset the consumer benefit.
Vet Cost Index captures the dispensing fee from each practice's published disclosure as one of the 16 routine services in scope of the price-transparency requirement.
Your right to a written prescription
Under the Veterinary Medicines Regulations a UK vet must provide a written prescription on request. The CMA's remedies require this is communicated to pet owners proactively. Once you have a written prescription you can fill it at any UK pharmacy or licensed online pharmacy that holds the relevant medication.
Whether to use a written prescription is a personal cost-versus-convenience trade-off. For one-off acute medication the convenience of dispensing at the practice may outweigh the cost difference. For long-term chronic medication the cumulative saving over months or years is typically substantial.
Frequently asked questions
What is a vet dispensing fee?
A dispensing fee is a charge added by the vet practice for handling and dispensing prescription medication. It is separate from the cost of the medication itself. Under the CMA's price-transparency remedies, every UK vet practice must disclose its dispensing fee on its website.
Can I get my pet's medication cheaper elsewhere?
Yes. Under the Veterinary Medicines Regulations a UK vet must provide a written prescription on request. The prescription can be filled at any UK pharmacy or licensed online pharmacy. The CMA's 2024 investigation found that medication obtained this way is commonly cheaper than the same medication dispensed by the practice.
Can a vet refuse to give me a written prescription?
No. Under the Veterinary Medicines Regulations a UK vet is required to provide a written prescription on request for any medication they would otherwise dispense. The CMA's remedies require pet owners are informed of this right proactively.
Does the practice charge a fee for a written prescription?
Many practices charge a separate written-prescription fee. The CMA's order constrains the level of this fee so that it cannot wholly offset the consumer benefit of obtaining medication elsewhere. The fee level should be disclosed alongside the dispensing fee on the practice's website.
Vet Cost Index
A transparent UK vet-pricing index built around the CMA Vet Services price-transparency remedies. The comparison index opens as practices publish their disclosures.