
Vidalta 15mg Tablet for Cats - per Tablet
246220
Vidalta 15mg is a prescription-only veterinary medicine used to treat hyperthyroidism in cats. Each modified-release tablet contains 15 milligrams of the active substance carbimazole. The treatment is designed to control the overproduction of thyroid hormones by the thyroid gland, helping to manage the symptoms of hyperthyroidism and improve your cat’s overall health and wellbeing.
What is Hyperthyroidism in Cats?
Hyperthyroidism is a common endocrine disorder affecting middle-aged and older cats. It occurs when the thyroid gland, located in the neck, becomes overactive and produces excessive amounts of thyroid hormones, particularly thyroxine (T4). These hormones regulate the body’s metabolism, so when their levels are too high, the cat’s metabolism speeds up significantly.
The condition is usually caused by a benign tumour on the thyroid gland, known as an adenoma. In rare cases, it can be caused by a malignant tumour. As the disease progresses, it places strain on the heart, liver, kidneys, and other vital organs. Early diagnosis and appropriate treatment are crucial to managing the condition effectively.
VET PRESCRIPTION REQUIRED
Product Features
- Pack Size: - Sold Individually
- Target Animal: - Cat (Feline)
- Related Condition: - Treatment of hyperthyroidism in cats
- Pet Prescription Required?: - Yes (For UK Orders)
- Active Ingredient: - Carbimazole
- Product Name: - Vidalta 15mg Tablet for Cats - per Tablet
More Information
Description
15mg Vidalta Tablets for Cats with Hyperthyroidism
Vidalta may only be supplied with a valid veterinary prescription issued by your vet. You should only purchase Vidalta if you have or are in the process of arranging such a prescription. See information bar for further details.
Symptoms of Hyperthyroidism
Cats with hyperthyroidism may display a range of symptoms. The most common include:
-
Weight loss despite an increased appetite
-
Restlessness or hyperactivity
-
Increased thirst and urination
-
Vomiting or diarrhoea
-
Poor coat condition or hair loss
-
Rapid heart rate
-
Behavioural changes, such as irritability or anxiety
Without treatment, the condition can worsen over time and may lead to serious health complications, including high blood pressure (hypertension), heart disease, and kidney damage.
How Vidalta 15mg Works
Vidalta contains carbimazole, a substance that is converted into the active form methimazole within the body. Methimazole works by inhibiting the production of thyroid hormones in the thyroid gland. It does this by blocking the enzyme thyroperoxidase, which is involved in the synthesis of thyroxine (T4) and triiodothyronine (T3), the two main thyroid hormones.
Vidalta is formulated as a modified-release tablet, which allows the medication to be released gradually over time. This means that it only needs to be administered once daily, helping to maintain a steady level of thyroid hormone suppression throughout the day. The once-daily dosing also makes the treatment routine simpler and more convenient for both cat and owner.
By reducing the production of thyroid hormones, Vidalta helps to alleviate the symptoms of hyperthyroidism and restore a more normal metabolic rate. Over time, most cats experience improvements in appetite, weight, coat condition, and overall behaviour.
Usage and Administration
Vidalta tablets should be given orally and at the same time each day, as directed by your veterinary surgeon. The tablets should not be split, crushed, or chewed, as this may affect the modified-release mechanism. The dosage prescribed will depend on your cat’s weight, thyroid hormone levels, and response to treatment.
It is important that Vidalta is only used under the supervision of a vet, and that your cat receives regular monitoring. Thyroid hormone levels and kidney function will need to be checked periodically to ensure that the medication is working effectively and safely.
Vidalta is not suitable for use in cats with pre-existing liver disease or certain blood disorders. It should also not be given to pregnant or lactating cats.
Precautions and Side Effects
As with any medication, side effects can occur. The most common side effects associated with Vidalta include:
-
Vomiting
-
Reduced appetite
-
Lethargy
-
Diarrhoea
These symptoms are often mild and temporary, particularly in the early stages of treatment. If they persist or worsen, veterinary advice should be sought.
Less commonly, cats may develop more serious side effects such as liver problems, low white blood cell counts (leucopenia), or clotting disorders. These conditions are usually detected through regular blood tests, which is why ongoing veterinary monitoring is important.
In rare cases, cats may exhibit signs of hypersensitivity to the medication, such as facial swelling or difficulty breathing. If this occurs, stop treatment and contact a vet immediately.
People administering the medication should wash their hands after handling the tablets. Pregnant women, or women of childbearing age, should avoid handling Vidalta, as exposure to carbimazole may pose a risk to unborn children.
Storage and Handling
Vidalta should be stored in a dry place at room temperature, below 25°C. Keep tablets in the original packaging until they are needed, and ensure they are kept out of reach of children and animals. Do not use the medication beyond the expiry date printed on the packaging.
Unused or expired medication should be disposed of in accordance with local regulations. Do not flush unused Vidalta down the toilet or throw it away with household waste. Your vet or pharmacist can advise you on the correct disposal method.
Legal category
Vidalta is a POM-V (Pet Prescription Required)
You may also like

Ipakitine Powder for Kidney Failure - 60g
60g Ipakitine Powder for Kidney Failure in Cats & Dogs. Ipakitine is a complementary feeding stuff for the support of renal function in cases of chronic renal insufficiency in cats and dogs

Vidalta 10mg Tablet for Cats - per Tablet
Vidalta 10mg is a prescription medication used to manage hyperthyroidism in cats. It contains the active ingredient carbimazole, which helps regulate excessive thyroid hormone production. Vidalta is designed for long-term use and is available in a controlled-release tablet formulation.
What is Hyperthyroidism in Cats?
Hyperthyroidism is a common endocrine disorder in older cats. It occurs when the thyroid glands produce an excessive amount of thyroid hormones, particularly thyroxine (T4). These hormones regulate metabolism, and when levels become too high, a cat’s body functions accelerate beyond normal rates.
Hyperthyroidism affects multiple organs and systems. The increased metabolic rate can lead to significant weight loss, despite an increased appetite. Cats with this condition often experience behavioural changes, digestive issues, and heart problems if left untreated.
Signs of Hyperthyroidism in Cats
Cats with hyperthyroidism often display noticeable behavioural and physical changes. Common symptoms include:
- Weight loss despite an increased appetite
- Hyperactivity or restlessness
- Excessive thirst and urination
- Vomiting or diarrhoea
- Poor coat condition or hair loss
- Increased heart rate (tachycardia)
- Weakness or muscle wasting
- Changes in behaviour, including aggression or vocalisation
If hyperthyroidism is left untreated, it can lead to secondary complications, including high blood pressure (hypertension), heart disease, and kidney problems.
VET PRESCRIPTION REQUIRED

Kaminox - Potassium & Amino Supplement For cats/dogs - 60ml
Kaminox for Cats and Dogs
60ml Kaminox is a liquid potassium supplement designed to support cats and dogs with low potassium levels, also known as hypokalaemia. It provides essential potassium along with additional vitamins and amino acids that contribute to overall health and wellbeing. Potassium is a vital mineral required for normal muscle function, nerve transmission, and cellular activity. A deficiency can lead to weakness, lethargy, reduced appetite, and, in severe cases, life-threatening complications.
Hypokalaemia is commonly associated with kidney disease, a condition frequently seen in older cats and dogs. The kidneys play a crucial role in maintaining electrolyte balance, including potassium levels. When kidney function declines, potassium loss can occur, leading to muscle weakness and other health issues. Kaminox helps replenish potassium levels and provides additional nutritional support to maintain proper organ function.

100ml Thyronorm for Cats 5mg/ml Oral Solution
100ml Thyronorm for Cats is a medication designed to stabilize hyperthyroidism in cats before undergoing surgical thyroidectomy, as well as providing long-term treatment for feline hyperthyroidism. Hyperthyroidism is a common hormonal disorder in cats, which occurs when the thyroid glands produce excessive amounts of thyroid hormones, leading to various health issues, including weight loss, increased appetite, hyperactivity, and heart problems. By using Thyronorm, Vets can effectively manage this condition and improve the overall health and quality of life of affected cats.
Thyronorm Oral Solution for Cats offers a reliable and efficient method for controlling feline hyperthyroidism. This easy-to-administer liquid medication allows for accurate dosing and is often well-tolerated by cats, making it a popular choice among veterinarians and pet owners alike. The active ingredient in Thyronorm oral solution is thiamazole, which is present at a concentration of 5mg/ml. Thiamazole works by inhibiting the production of thyroid hormones, thereby helping to restore a normal hormonal balance and alleviate the symptoms associated with hyperthyroidism in cats.
VET PRESCRIPTION REQUIRED