</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Phenytoin Sodium 100mg Capsules from Mexico

Phenytoin sodium is an anticonvulsant for epilepsy treatment, affecting CNS. The capsule form with the alkaloid derivative in measured retail doses classifies under HTS 3004.49.00.20.

Duty Rate — Mexico → United States

100%

Rate breakdown

9903.04.60100%Pharmaceuticals: 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

Monitor for narrow therapeutic index drug requirements

Ensure dissolution profile testing compliance

Label extended-release if applicable to avoid reclassification