Famotidine Active Pharmaceutical Ingredient from China
Famotidine, a histamine H2-receptor antagonist, features a thiazole-imidazolyl nitrogen heterocyclic structure qualifying for HTS 2933.99.90.00. Imported as bulk drug substance for acid reflux medications like Pepcid.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include polymorph Form A certificate to match FDA reference
• Validate impurity profile per ICH Q3A guidelines
• Use temperature-controlled shipping to prevent degradation