During which phase of the drug approval process in the U.S. is the safety and efficacy of a drug established, usually in laboratory animals?

Name: During which phase of the drug approval process in the U.S. is the safety and efficacy of a drug established, usually in laboratory animals?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The safety and efficacy of a drug are initially established during the preclinical phase, which involves laboratory and animal studies before the drug is tested in humans.

During Which Phase of the Drug Approval Process in the U.S