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

Diphenhydramine Citrate from Canada

Diphenhydramine citrate salt serves as an antihistamine for allergies and anti-nauseant in motion sickness. Aromatic with pyrimidine elements, under HTS 2933.59.21.00 per drug subheading. Chapter C(1) places salts with organic compound.

Duty Rate — Canada → United States

16.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Citrate follows base per notes; verify no impurities >0.1%

Avoid fire-extinguisher exclusions

Prior FDA alert check for drowsiness warnings