Famotidine API from Japan
Famotidine is an aromatic imine-function histamine H2-receptor antagonist used for acid reflux treatment. It qualifies for HTS 2925.29.20.00 as a drug with carboxyimide and imine characteristics. Widely imported for generic antacid tablet production.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.628.5%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
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
• Submit BE/ANDA documentation linking to approved reference product
• Include thioether oxidation stability data for impurity control
• Verify dual function classification maintains 'drugs' status under 2925