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  1. News & Events for Human Drugs

Spotlight on CDER Science

A Real-World Case Study of Levothyroxine Use Addresses Institutional Concerns About Generic Product Interchangeability

CDER research shows that patients switching between alternative generic levothyroxine products attain the same health outcome as single-product users. This real-world result affirms FDA-approved generic drugs—even one with a narrow therapeutic window—as interchangeable.

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