Flunarizine Dihydrochloride from Germany
Flunarizine dihydrochloride is a calcium channel blocker used for migraine prophylaxis, featuring a piperazine ring. It qualifies for HTS 2921.30.10.00 as a derivative of cyclanic polyamines from aromatic compounds listed in U.S. note 3.
Duty Rate — Germany → United States
18.5%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit advance chemical structure diagrams confirming piperazine-aromatic linkage
• Comply with DEA precursor chemical reporting if applicable
• Use refrigerated transport for stability during import