Animalcare
Thiafeline Film-Coated Tablets for Cats
Thiafeline Film-Coated Tablets for Cats
Prescription medicines available from the 25th of February 2026
Vetalia will begin supplying prescription veterinary medicines in line with UK regulatory requirements.
Tracked shipping from £3.95.
Shipping calculated at checkout.
Prescription Information
- Prescription must match the product, strength and formulation ordered.
- Shipping name and address must match the details on the prescription.
- For orders involving more than one pet, a separate prescription is required for each animal. Please enter all pet names in the box above.
- Uploaded prescriptions are held on file for up to 6 months or until the prescribed number of repeats has been supplied, whichever comes first.
All orders are reviewed by our veterinary team. Prescription checks are typically completed within 2 working days. Orders are dispatched once checks are complete and the medication is ready. Read our prescription policy.
PRODUCT INFORMATION
Thiafeline Film-Coated Tablets for Cats are a prescription-only veterinary medicine used for the management of feline hyperthyroidism.
Thiafeline contains thiamazole (also known as methimazole), an antithyroid medication widely prescribed for cats to reduce excessive thyroid hormone production and control the clinical signs associated with an overactive thyroid gland. Thiafeline tablets are film-coated and designed for accurate oral dosing in cats requiring medical management of hyperthyroidism.
Thiafeline tablets may be prescribed for long-term treatment of feline hyperthyroidism, with dosage adjusted over time according to clinical response and thyroid hormone monitoring, in accordance with the clinical judgement of the prescribing veterinary surgeon. Medical management with thiamazole is commonly used where radioactive iodine therapy or surgical thyroidectomy are not pursued.
Learn more about hyperthyroidism in cats here.
This product is a prescription-only veterinary medicine (POM-V).
Dosage, duration of treatment and administration instructions are determined by the prescribing veterinary surgeon and provided on the dispensing label. Cats receiving ongoing treatment with Thiafeline for hyperthyroidism require regular blood testing and monitoring as advised by their vet.
Further information, including contraindications, warnings and potential adverse reactions, can be found in the product data sheet available here.
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