Ritodrine Hydrochloride from Canada
Ritodrine hydrochloride, an aromatic amino-alcohol salt, was used as a tocolytic for preterm labor inhibition. Its beta-sympathomimetic structure with phenolic OH and amino groups places it in HTS 2922.19.70.00.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Note discontinued human use status; primarily for research import now
• Include synthetic route documentation to confirm non-natural alkaloid status
• Package under inert atmosphere to prevent phenolic oxidation