Trump imposes 100% Section 232 tariff on patented pharmaceutical imports

President Trump issued a proclamation on April 2, 2026, imposing 100% tariffs on imports of patented pharmaceuticals and their active ingredients under Section 232 of the Trade Expansion Act of 1962, citing national security. The tariffs apply starting July 31, 2026, for large companies and September 29 for others. Companies signing Commerce Department-approved onshoring plans face a reduced 20% rate; those agreeing to most-favored-nation drug pricing pay 0%. Generic drugs and orphan drugs are excluded.