Butalbital Pharmaceutical Grade from Canada
Butalbital, a short to intermediate-acting barbiturate for tension headaches, features the pyrimidine ring listed under HTS 2933.53.00.00. Bulk imported for combination with acetaminophen/caffeine in Fioricet formulations. Pure chemical compound without excipients.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Combination drug manufacturers need separate API and excipient duty calculations
• Include polymorphic form specification (Form I vs II) in COA to prevent grade disputes