Thyronorm 5 mg/ml Oral Solution for Cats

What Thyronorm is used for

Thyronorm contains thiamazole (methimazole), an antithyroid medicine licensed for two uses in cats: stabilisation of hyperthyroidism before surgical thyroidectomy, and long-term treatment of feline hyperthyroidism.

Strength and pack sizes

5mg thiamazole per ml, honey-flavoured liquid. Available in 30ml and 100ml bottles, given with the graduated dosing syringe provided.

How it’s given

Given orally via the syringe, usually split into a morning and evening dose as prescribed by your vet. Give at a consistent time each day. Do not exceed 20mg per day. Regular blood tests are required throughout treatment to check the dose is safe and effective.

Safety information

• Not for use in cats with liver disease, diabetes mellitus, autoimmune disease, blood-cell or clotting disorders, or in pregnant or lactating cats
• Cats need blood tests before starting and again shortly after, to check for changes in white blood cells or red blood cells
• Make sure your cat always has access to drinking water
• Any cat that becomes acutely unwell or feverish during treatment needs urgent veterinary bloodwork
• Possible effects include vomiting, reduced appetite, lethargy or skin irritation around the head and neck; contact your vet if you notice anything unusual

Handling advice for owners

All women of child-bearing age should wear non-permeable, single-use gloves when giving this medicine or handling litter or vomit from a treated cat. Those who are pregnant or trying to conceive should not handle it at all. Wash your hands after use, and seek medical advice if a person accidentally swallows any.

Full prescribing information is in the product datasheet.

Useful links

• Cat Medication
• Pet Prescription Help Centre