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Thyronorm®

The Market-Leading Solution for Feline Hyperthyroidism

Thyronorm® is the market-leading treatment for feline hyperthyroidism1 , formulated as an oral solution, offering a simple solution to a complex problem.

Why Choose Thyronorm®? Key Benefits for Your Practice

As a liquid formulation, Thyronorm® provides significant advantages for both veterinary professionals and cat owners:

  1. Superior Compliance & Acceptance: The liquid, honey-flavoured formula is readily accepted by cats2. Compliance is significantly addressed by the liquid form, with over 87% of owners preferring liquids for their cat's long-term medication3.

  2. Effortless & Accurate Dosing: Certified as ‘EASY TO GIVE’ by International Cat Care, Thyronorm® is easily titratable into accurate doses and 98% of vets find that Thyronorm® makes accurate dosing simpler4.

  3. Trusted Professional Preference: Thyronorm® is the most recommended first-line therapy for feline hyperthyroidism and 90% of vets surveyed would recommend Thyronorm® to other vets4.

  4. Positive Owner Feedback: 91% of vets have received positive feedback from owners using Thyronorm®4.

Product Specifications & Treatment Protocol

Active Ingredient: Thiamazole

Pharmaceutical Form: 5 mg/ml honey flavoured oral solution

Presentation: Available in 30ml & 100ml plastic bottles to prevent breakage and spillage.

Shelf Life: Maintains a generous 6 months in use shelf life after opening

Indication: Thyronorm® is indicated for the treatment of feline hyperthyroidism.

This condition, resulting from an overactive thyroid gland, is believed to be the most common hormonal disease in cats worldwide. In the UK, it is thought to affect over 10% of cats5.

Dosage & Monitoring

Starting Dose: 5mg thiamazole per day, generally divided into two administrations (morning and evening).

Compliance Note: If compliance is a challenge, once-daily dosing is considered acceptable. A 2.5mg dose given twice daily may be more efficacious in the short term.

Optimising Stabilisation: Use the same dosing schedule relative to feeding daily.

Monitoring Schedule: Testing should be assessed before initiating treatment and at 3, 6, 10, and 20 weeks, and then every 3 months thereafter. Monitoring includes haematology, biochemistry, and serum total T4.

References:

1. Kynetec VetTrak Sales Data, October 2025
2. ISFM easy to give award 2017
3. Zimmerman, T.M. et al. (2014) Ease of use of Semintra- cat owner feedback under European field conditions. J Feline Med Surg. 16, 764
4. Based on survey results from 483 vets who have used Thyronorm (March 2024)
5. Wakeling J, Melian C, Font A, et al. Evidence for differing incidences of feline hyperthyroidism in London UK and Spain. In: Congress Proceedings 15th ECVIM-CA, Glasgow, Scotland, Poster 43; 2005, p 220