Thyforon
Levothyroxine for hypothyroidism in dogs. Same active ingredient as Soloxine, sold under the Thyforon brand by Dechra. Active ingredient: levothyroxine sodium.
Key takeaways
- Thyforon treats levothyroxine for hypothyroidism in dogs. same active ingredient as soloxine, sold under the thyforon brand by dechra
- Typical UK vet price £23 to £33 per month, based on observed dispensary list pricing across UK practices.
- Cheapest VMD-approved online from around £0.14 per month, versus £0.23 at the upper end of the same six pharmacies.
- Prescription works the same way, ask your vet for a written Thyforon prescription (capped at £21), dispense online.
- Main side effect to watch for: signs of hyperthyroidism if overdosed (panting, hunger), review the full list with your prescribing vet before starting or changing dose.
Live verified pricing
Just checkedLast refreshed 17 May 2026We checked the pharmacy product page directly. Prices below are the actual per-unit list price for the variant linked, confirm on the pharmacy site before buying.
- Pet Drugs OnlineThyforon Flavoured Tablets for Dogs 200 microgramsVisit pharmacy →£1.60per unit
See your saving over a year
Pick your dog's weight (and optionally your vet's actual quote) to see the exact monthly and annual saving. The price comparison table below sorts pharmacies by cheapest first; we never sort by commission.
Based on a 15 kg dog, recommended strength: 200 mcg. Assumes 12 months of continuous use (chronic dosing) and one written prescription per year. CMA Order caps the prescription fee at £21 for the first medicine, plus £12.50 per additional medicine on the same prescription. Prices are indicative and last verified 2026-05-15. Always confirm the current price on the pharmacy site before purchase.
Why it costs more at the vet
Lifelong hormone replacement dispensed at routine vet mark-up. Often a fraction of the vet price online.
Common side effects
- Signs of hyperthyroidism if overdosed (panting, hunger)
Not a complete list. Always read the patient information leaflet and speak to your vet about side effects.
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How to get a written prescription
The CMA Order is legally binding by 23 September 2026. Every UK vet must offer a written prescription on request, with the fee capped at £21 for the first medicine plus £12.5 per additional medicine on the same prescription. Take the prescription to any VMD-approved online pharmacy listed above.
Common questions
- Thyforon vs Soloxine - which should I buy?
- Same molecule, both POM-V. Pick whichever is cheaper at the time. Ask your vet to write the prescription generically (as 'levothyroxine').
- How often does my dog need blood tests on Thyforon?
- Usually every 6-12 months once stable. Tests should be timed 4-6 hours after the morning dose.
Track Thyforon price drops
We'll email when Thyforon drops in price at any of the pharmacies above.
Stop overpaying for Thyforon.
Same medicine, same regulator, same vet relationship, half the price. Five-minute switch from in-clinic dispensing to a VMD-approved online pharmacy.
Pricing data status: indicative. Last verified 2026-05-15. Pharmacies change prices regularly, always confirm before purchase. Not medical advice.