Which regulatory agency is primarily responsible for drug approval in the United States?

The Food and Drug Administration (FDA) is the agency primarily responsible for drug approval in the United States. This regulatory body evaluates the safety and efficacy of pharmaceutical products before they can be marketed to the public. The FDA oversees the entire drug development process, which includes preclinical testing, clinical trials, and the submission of a New Drug Application (NDA). Once a drug has passed through these rigorous phases and has met the standards established by the FDA, it can be approved for use.

The FDA's responsibilities extend beyond drug approval to encompass a wide range of products including food, vaccines, and medical devices, making it a critical component of public health and safety in the U.S. By ensuring that drugs are proven to be safe and effective, the FDA plays a vital role in protecting consumers and maintaining the integrity of the healthcare system.

In contrast, the other agencies listed have different roles within the regulatory landscape. The Drug Enforcement Administration (DEA) primarily focuses on the regulation of controlled substances to prevent drug abuse and illegal trafficking. The Centers for Disease Control and Prevention (CDC) is responsible for public health and safety, particularly in disease prevention and control, rather than drug approval. The Federal Trade Commission (FTC) deals with consumer protection and antitrust laws,