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Story summary
- U.S. President Donald Trump imposed 100% tariffs on certain patented pharmaceutical products and ingredients, effective Tuesday.
- Patented drugs from the EU, Switzerland, Japan and South Korea face a 15% tariff while UK drugs are exempt.
- Companies that boost U.S. production incur a 20% tariff on their patented medicines.
- Experts warn the tariffs could force small drugmakers to close or merge, raising prices and limiting new medicines.