Lidocaine Patch Active Pharmaceutical Ingredient from Canada
Micronized lidocaine base specifically processed for transdermal patch matrix (particle size D90<10μm). Classified HTS 2924.29.57.00 as pure aromatic amide API before patch assembly. Meets skin permeation pharmacopeial requirements.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.60100%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
• Include laser diffraction PSD report confirming D90<10μm for patch matrix compatibility
• Document polymorphic form (Form I preferred) affecting skin permeation rates
• Avoid milling post-import; particle size growth during storage affects patch performance