Perphenazine Powder from Canada
Perphenazine is a piperazine phenothiazine antipsychotic with the defining ring-system, used for nausea and psychosis treatment. HTS 2934.30.43.00 applies via additional U.S. note 3 to section VI for these listed heterocyclic products. It remains as a separate chemically defined compound.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include third-party lab testing for identity and purity; register with FDA for drug substance imports; common pitfall is undervaluation leading to audits