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Lidocaine Patch Active Pharmaceutical Ingredient from China

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 — China → United States

12.5%

Rate breakdown

9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

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