K-Dur 20 Extended-Release Tablets from Mexico
Extended-release potassium chloride tablets (20 mEq) designed for once-daily dosing to prevent potassium deficiency in patients with diuretic-induced hypokalemia. Classified under HTS 3004.90.92.65 due to its mixed formulation primarily affecting electrolytic balance, packaged in retail blister packs. The controlled-release matrix ensures steady electrolyte replenishment.
Duty Rate — Mexico → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Include FDA registration and drug listing numbers; ensure NDC coding on packaging for seamless CBP clearance
• Document bioequivalence to US reference standards to prevent delays in therapeutic equivalence verification
• Avoid common error of insufficient stability data, critical for extended-release formulations during import inspection