Can I buy prescription pet medicines online in the UK?

Yes, from a retailer registered with the Veterinary Medicines Directorate, supplying against a valid written prescription from a veterinary surgeon. PetChemist.co.uk is a pre-launch concept and is not registered, so it does not supply medicines.

How do I get a written prescription from my vet?

Ask your practice directly. Vets may charge a prescription fee, and the prescription states the animal, medicine, strength, quantity and dosage. You are entitled to ask for a written prescription so you can buy elsewhere.

How long is a veterinary prescription valid?

Validity is set by the prescribing vet and the medicine involved, and repeats are limited. Check the dates and remaining repeats on your prescription, and re-book a check-up when it expires.

All pets · Prescriptions

Pet medicine prescriptions: how online fulfilment can work in the UK

Owners are often told they can buy a prescribed medicine elsewhere, then find the process opaque. The underlying framework is actually quite clear, and it separates two distinct roles: prescribing and supplying. Understanding that split makes online fulfilment far easier to judge.

10 min read · updated 22 August 2026

Prescribing and supplying are different jobs

A veterinary surgeon who has the animal under their care decides whether a medicine is appropriate and issues the prescription. A separate, appropriately registered retailer may then supply that medicine against the prescription.

Owners are entitled to ask their vet for a written prescription so it can be dispensed elsewhere; practices may charge a fee for writing it. The prescribing decision itself always stays with the vet who knows the animal.

The UK legal classes in brief

Classification determines who may supply a product and under what conditions, and it is the single most useful thing for an owner to understand before shopping online.

POM-V: prescription-only, prescribed by a veterinary surgeon.
POM-VPS: prescription by a vet, pharmacist or suitably qualified person (SQP).
NFA-VPS: no written prescription, but supply must be by a vet, pharmacist or SQP.
AVM-GSL: general sale.

What the rules require of online retailers

UK retailers selling POM-V, POM-VPS or NFA-VPS products over the internet must be registered with the Veterinary Medicines Directorate (VMD). Medicines must be UK-authorised and supplied from appropriately registered or authorised premises, with professional involvement in prescription, supply and advice.

Government guidance is published at gov.uk, and the VMD maintains a public list of accredited internet retailers that owners can check before ordering. A site that sells regulated medicines without appearing on that list should be treated with caution.

How a compliant online journey usually looks

In practice the owner selects the medicine and strength their vet has prescribed, provides the prescription by upload or post, and the retailer's professional staff check it before dispatch. Nothing regulated is released until that check is complete.

Prescriptions carry a validity period and a stated quantity, including for repeats, so an order can only be filled within those limits. A clear online process shows the owner exactly where their order sits in that sequence.

Details must match: animal name, medicine, strength, quantity and prescriber.
Repeats are limited by what the prescription specifies, not by the basket.
Expired prescriptions require a fresh veterinary assessment.

Costs, savings and the fee question

For long-term medication, dispensing externally can reduce cost, but the prescription fee has to be set against the saving. For a single short course the fee may cancel out any benefit; for ongoing chronic treatment it often does not.

Insurance and practice health plans can also affect the arithmetic, so it is worth asking the practice how a written prescription interacts with any plan the owner already pays for.

Storage, handling and cold chain

Some veterinary medicines require refrigeration or protection from light, and a credible retailer states how those products are packed and shipped. Delivery timing matters for anything temperature-sensitive.

Owners should also check expiry dates on arrival, keep medicines in original packaging with the dispensing label intact, and return unused or out-of-date products to a veterinary practice or pharmacy rather than putting them in household waste.

A sensible checklist for owners

Before ordering a prescribed medicine online, it is reasonable to verify the basics rather than relying on the appearance of the website.

Is the retailer listed on the VMD's register of accredited online retailers?
Does the site explain how prescriptions are validated?
Is a named professional accountable for supply and advice?
Are the medicines UK-authorised products?
Is there a clear route to speak to someone about a dosing question?

Questions UK owners ask

Short, direct answers to the questions that come up most often around this topic. General information only, not advice about your individual animal.

Can I buy prescription pet medicines online in the UK?: Yes, from a retailer registered with the Veterinary Medicines Directorate, supplying against a valid written prescription from a veterinary surgeon. PetChemist.co.uk is a pre-launch concept and is not registered, so it does not supply medicines.
How do I get a written prescription from my vet?: Ask your practice directly. Vets may charge a prescription fee, and the prescription states the animal, medicine, strength, quantity and dosage. You are entitled to ask for a written prescription so you can buy elsewhere.
How long is a veterinary prescription valid?: Validity is set by the prescribing vet and the medicine involved, and repeats are limited. Check the dates and remaining repeats on your prescription, and re-book a check-up when it expires.

Illustrative categories and example products created for this demonstration. Nothing is offered for sale and no product is a recommendation for your animal.