Why UK vet medication is so expensive (and what's changing in 2026)
UK vet medication markup at the practice dispensary typically runs at 50 to 70 percent above what the same drug costs at a VMD approved online pharmacy. The maths is not a secret. The Competition and Markets Authority's 2024 to 2026 market investigation found that medication margin is the single largest profit lever at UK veterinary practices, especially the corporate groups. The September 2026 Final Order changes that. Here is what the markup actually pays for, why the gap has been allowed to grow, and what is shifting now.
Key takeaways
- UK vet prices rose 63 percent between 2017 and 2024, more than double general inflation (CMA, March 2026).
- Six corporate groups (CVS, IVC, Linnaeus, Medivet, Pets at Home, VetPartners) own roughly 60 percent of UK first opinion practices.
- £200 per year per pet — CMA's own estimate of typical owner overspend on long term medication.
- The CMA Final Order, in force 23 September 2026, caps prescription fees at 21 pounds (plus 12.50 per additional medicine on the same prescription) and requires practices to publish top ten product prices.
- The markup is not entirely profit — a reasonable share pays for dispensary staffing, cold chain storage, controlled drug compliance, and out of hours availability.
What does vet markup actually mean?
Vet markup is the difference between the wholesale price a practice pays its drug supplier and the retail price it charges the owner at the dispensary counter. For prescription medication, that gap can be substantial. The CMA's 2026 final report found markup on long term medication averaging around 100 to 200 percent at the corporate groups, falling somewhat at independents but still well above what comparable retail margins look like in adjacent industries. That does not mean every pound of markup is profit.
What the markup pays for at the practice level:
- A qualified SQP or RAMA behind the counter plus the supervising vet's clinical decision.
- Stock management including cold chain handling for biologic injections like Cytopoint and Librela and expiry management for low volume drugs.
- Controlled drug compliance including Home Office register keeping, secure cabinets, and double signed dispensing records.
- Out of hours availability when your dog needs a dose tonight.
A defensible dispensing margin covers those costs and a modest return. The CMA's concern was that the corporate groups in particular had drifted well above that defensible level, and the market structure made the drift invisible to owners.
Why did the gap with online pharmacies get so wide?
Information asymmetry
Until the CMA reforms, UK vet practices were not required to publish prices. Owners had no way to compare practice A against practice B except by ringing round. For chronic prescription medication, the cost is enough to matter (annual Apoquel for a Labrador is around 1000 pounds at vet prices) but small enough that most owners did not actually do the work.
Corporate consolidation
Between 2013 and 2024, six corporate groups acquired hundreds of independent practices and consolidated them under shared procurement and pricing models. Margin became standardised upward. The CMA found evidence of practices being acquired and prices raised within weeks of transition.
No competing online channel until VMD framework matured
The VMD's register was established in 2007 but did not gain meaningful consumer awareness until the mid 2020s. The CMA's own survey found that 70 percent of pet owners purchased long term medication from their vet despite many being eligible for material savings online.
What does the CMA Final Order actually require?
- Tell clients online medication is often cheaper.
- Provide written prescriptions on request, capped at 21 pounds (plus 12.50 per additional medicine).
- Publish prices for top ten products on practice website, updated quarterly.
- Disclose corporate ownership on signage and website.
- Provide written estimates for any treatment over 500 pounds.
- Run a transparent in house complaints process.
How much can I actually save?
The CMA's headline estimate is over 200 pounds per pet per year on long term medication. Our own data, refreshed monthly across the six main VMD approved UK online pharmacies, suggests senior dogs on multiple chronic medications routinely save 600 to 900 pounds per year by switching their medication channel to online pharmacies, while keeping the clinical relationship at the vet.
Worked example
A medium sized dog on Apoquel (16 mg, daily, for atopic dermatitis):
- Typical UK vet dispensary price around 75 to 110 pounds per month.
- Cheapest VMD approved online pharmacy price (May 2026 monthly refresh) around 18 to 25 pounds per month.
- Plus a one time written prescription fee of 21 pounds valid six months.
- Net annual saving around 600 to 700 pounds per year for one drug alone.
For senior dogs on combinations like Apoquel plus Vetmedin plus Cytopoint quarterly, the saving compounds.
Is online pharmacy medication the same as what the vet dispenses?
Yes, and this is worth being explicit about. UK VMD approved online pharmacies dispense identical, manufacturer branded medication in identical packaging to what your vet receives. Apoquel from Pet Drugs Online is the same Zoetis manufactured 16 mg tablets in the same blister pack as Apoquel from your vet. The supply chain origin is Zoetis UK in both cases. The Veterinary Medicines Directorate inspects every approved online pharmacy on the same inspection cycle as a practice dispensary.
The "is it real" question is fair to ask. The answer for VMD approved online retailers is unambiguously yes. The register is at gov.uk/check-veterinary-medicine-seller (see our detailed safety check for the full walkthrough).
When should I stay with the vet dispensary?
The maths does not always favour switching. Stay with your vet dispensary when:
- It is a one off short course of cheap antibiotics — the 21 pound prescription fee plus shipping wipes out the saving.
- Your dog is acutely unwell — get the first pack at the vet and switch on the refill.
- Your dog is being titrated on a new medication — keep one variable constant while the dose is being tuned.
- Controlled drugs have 28 day prescription validity so the maths can still work but it is more admin.
- You like your specific vet and want to support them — money flows where its owner directs it.
The switch is for chronic, repeatable, long term medication. That is where the markup gap is widest.
Frequently asked questions
- Is it legal to buy prescription dog medication online in the UK?
- Yes. Any UK pharmacy on the VMD's register of approved internet retailers is fully licensed to dispense prescription veterinary medication including POM V drugs with a valid written prescription from a UK qualified vet.
- Does my vet have to give me a written prescription if I ask?
- From 23 September 2026, yes unconditionally, capped at 21 pounds (plus 12.50 per additional medicine on the same prescription). Before that date, RCVS guidance has long made it best practice but has not been enforced as a hard requirement.
- Will my vet be annoyed if I switch to an online pharmacy?
- Some are, most are not. The CMA reforms make it a normal part of practice in 2026.
- How much do online pharmacies actually save versus my vet?
- Our annual saving calculator takes your dog's weight and current medication and shows the net saving after the 21 pound prescription fee. Typical chronic medication saves 50 to 70 percent monthly.
- What if my dog needs the medication tonight?
- Get the pack from your vet. Switch on the refill. The annual saving still works even if the first pack came at vet prices.
Sources & disclaimer
Not medical or legal advice. For your specific situation, talk to your vet, the RCVS, or the CMA. Sources: CMA Veterinary Services Market Investigation Final Report, March 2026 (gov.uk/cma-cases/veterinary-services-market-investigation); Veterinary Medicines Regulations 2013 (as amended); RCVS Code of Professional Conduct.