Thyroxine L Powder


A powder used in horses to treat hypothyroidism, a condition where the body lacks sufficient levels of the thyroid hormone.

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Thyroxine L Powder Basics

Thyroxine-L Powder is a synthetic thyroid hormone supplement that is used in equine patients with low thyroid hormone levels associated with hypothyroidism. Thyroid hormones are important for many metabolic functions, including metabolism, protein synthesis, heart rate, and growth.

Thyroxine L Powder requires a prescription from your veterinarian. It is available in 1 lb and 10 lb jars.

Thyroxine L Powder Directions

Use as directed by your veterinarian, and follow all instructions printed on the prescription label. Complete the entire prescription unless instructed otherwise by your veterinarian. Dosage and duration of treatment depend on the condition being treated and response to the medication. Administer as a top dressing.

Store at room temperature protected from light and moisture.

Thyroxine L Powder Warnings

Keep out of the reach of children and pets. Use in horses only. Use with caution if your horse also suffers from heart disease or hypertension, or if your horse is pregnant or nursing. Thyroxine L Powder may interact with some other medications. Therefore, inform your veterinarian of any and all medications your horse may be taking. If you notice any behavioral or physiological changes in your pet while administering this product, contact your veterinarian immediately.

Adverse Reactions and Serious Side Effects

Overdoses can be extremely dangerous. If you believe your horse may have ingested more Thyroxine L Powder than prescribed, contact your veterinarian immediately. Signs of an overdose include tachycardia, polyphagia, increased urination and drinking, or excessive panting.

If you have any additional questions regarding this product, please contact us at (877)220-6337. A member of our pharmacy staff will be happy to assist you!

Additional information

Package Size

1 lb Jar, 10 lb Jar