Prescription-Only Treatment for Canine Hypothyroidism

Leventa® Oral Solution is a veterinary-prescribed medication designed specifically for the treatment of hypothyroidism in dogs. Containing levothyroxine sodium, a synthetic form of the thyroid hormone thyroxine (T4), Leventa restores hormone levels to normal, helping manage the symptoms of an underactive thyroid such as lethargy, weight gain, coat thinning, and intolerance to cold.

This liquid formulation ensures accurate dosing and is particularly useful for dogs who are difficult to medicate with tablets. The 30ml bottle includes an oral dosing syringe for precise administration, allowing easy, stress-free daily treatment.

Key Benefits:

• Restores normal thyroid hormone levels in dogs with hypothyroidism

• Improves energy, coat quality, weight management, and overall vitality

• Liquid formulation – ideal for dogs who struggle with tablets

• Provides accurate, weight-specific dosing with the included syringe

• Once-daily dosing for most dogs under veterinary supervision

Active Ingredient:

• Levothyroxine sodium 1mg/ml
  Levothyroxine replaces the deficient hormone in hypothyroid dogs, normalising metabolism and improving clinical signs.

Indications:

• Treatment of hypothyroidism in dogs

• Management of symptoms such as:

  • Lethargy and low activity levels

  • Excessive weight gain

  • Dry, thinning coat or hair loss

  • Poor cold tolerance

  • Skin changes

Suitable For:

• Dogs diagnosed with hypothyroidism via blood testing

• Dogs needing a liquid alternative to levothyroxine tablets

• Senior or middle-aged dogs prone to endocrine disorders

Directions for Use:

• Shake well before use

• Administer orally using the provided syringe

• Dose according to your vet’s prescription — based on your dog’s weight and T4 monitoring

• Typically given once daily, but some dogs may require twice-daily dosing

• Regular blood tests are required to adjust the dose and ensure optimal hormone control

Important Information:

• Leventa® is a Prescription Only Medicine – Veterinary (POM-V)

• A valid veterinary prescription is required to supply this product

• Do not use in dogs with untreated adrenal insufficiency or uncorrected heart disease

• Keep out of reach of children

Legal Category: POM-V.

To find details on all veterinary medicinal products currently authorised in the UK, please see the VMD's Product Information Database.

IMPORTANT LEGAL INFORMATION: This is a veterinary-prescription-only medicine (POM-V) that can only be prescribed by a veterinary surgeon but may be dispensed by another veterinary surgeon or pharmacist.