Lidocaine from Mexico
Lidocaine is a local anesthetic containing an acyclic amide (diethylamino acetanilide) linkage essential to its pharmacological action. Classified under HTS 2924.19.80.00 as an 'other' acyclic amide derivative, it fits chapter 29 provisions for chemically defined compounds with carboxyamide functions not elsewhere specified.
Duty Rate — Mexico → 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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide DEA registration if applicable and ensure USP-grade certification for pharmaceutical imports
• Document amide content via NMR spectroscopy to confirm classification within acyclic amides
• Watch for misclassification as 'aromatic' amines under 2921 if the tertiary amine is emphasized over amide