What is the difference between ERFA and Armour Thyroid tablets?

Armour® Thyroid Tablets

 Allergan™ distributes Armour® Thyroid (thyroid tablets, USP) in the USA in the following strengths:

The active ingredient (desiccated natural thyroid) in Armour® Thyroid (thyroid tablets, USP) is derived from porcine (pig) thyroid glands.

ERFA® Thyroid Tablets

EFRA™ distributes ERFA® Thyroid (desiccated thyroid) in Canada in strengths of 30mg, 60mg, and 125mg.

ERFA® Thyroid tablets contain desiccated thyroid containing lactose, derived from porcine thyroid glands.

Note that T4 is converted to T3 in your body.

If you have questions about thyroid medications, please contact our pharmacy Toll Free 1-800-991-0282. We are always happy to answer your questions.

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