Thyrozine Powder

Thyrozine Powder
1 lb - 1 lb (453.6 g)
10 lb - 10 lb (4.5 Kg)
SKU : 365501_-RX
Price: $23.35

Veterinarian Prescription (Rx) Required
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  • Used for correction of conditions associated with hypothyroidism in horses and ponies
  • Contains levothyroxine sodium
  • Available Sizes
    • 1 lb pail
    • 10 lb bucket
How to Order Prescriptions


Thyrozine Powder is used for correction of conditions associated with hypothyroidism in horses and ponies. Thyrozine Powder contains levothyroxine sodium. 

Thyrozine Powder is a Palatable Supplement for the Correction of Conditions Associated with Hypothyroidism in Horses and Ponies.


Doses should be individualized and animals should be monitored daily for clinical signs of hyperthyroidism or hypersensitivity. Suggested initial doses are 1-10 mg levothyroxine sodium (T4)/100 lb. body weight (2-20 mg/100 kg) once per day or in divided doses. Response to the administration of Thyrozine Powder should be evaluated clinically every week until an adequate maintenance dose is established. In most horses, this is usually in the range of 35 to 100 mg total daily dose of T4 (1-3 level tablespoonfuls Thyrozine Powder). 


Thyrozine Powder may be top dressed or mixed with the daily ration.


Each pound (453.6 g) contains:

Levothyroxine Sodium USP

0.22% (1.0 g)

One level teaspoonful contains 12 mg of T4; one level tablespoonful contains 36 mg of T4.

How Supplied

Thyrozine Powder is available in two sizes:
    • 1 lb (4536.g) pail
    • 10 lb (4.5 Kg) bucket


Administer with caution to animals with clinically significant heart disease, hypertension or other complications for which a sharply increased metabolic rate might prove hazardous. Use in pregnant mares has not been evaluated. 


Do not store about 30C (86F) Keep lid tightly closed and store in a dry location.

by Phoenix
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