2937.90.40.00/Levothyroxine Sodium USP Powder/Canada

Levothyroxine Sodium USP Powder from Canada

Levothyroxine sodium USP is the sodium salt of l-thyroxine, a synthetic thyroid hormone used primarily for treating hypothyroidism. It falls under HTS 2937.90.4000 as an amino-acid derivative hormone, specifically l-thyroxine sodium, meeting Chapter 29's criteria for chemically defined organic compounds used as hormones.

Duty Rate — Canada → United States

0%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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Import Tips

• Ensure USP certification and FDA compliance; provide Certificate of Analysis (CoA) documenting purity >98% and l-thyroxine sodium identity

• Include full chemical documentation proving it meets Chapter 29 hormone definition; avoid misclassification as general amino acid

• Verify proper cold chain logistics if required; common pitfall is improper stability testing for transport

Levothyroxine Sodium USP Powder from Canada — Import Duty Rate | HTS 2937.90.40.00