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