“FDA approved” means a product has been reviewed by the U.S. Food and Drug Administration and found to be safe and effective for its intended use. This designation applies specifically to prescription and over-the-counter drugs, biological products like vaccines, and the highest-risk medical devices. Many other products the FDA regulates, including most medical devices, cosmetics, and dietary supplements, go through different processes or no premarket review at all.
Understanding what FDA approval covers, and what it doesn’t, matters because companies sometimes use vague language to imply their products have been through a rigorous review when they haven’t.
What Products Require FDA Approval
The FDA oversees a wide range of products, but only certain categories require formal approval before they can be sold. Prescription drugs and over-the-counter medications must receive approval through a New Drug Application. Biological products, which include vaccines, blood products, gene therapies, and certain proteins, require a Biologics License Application. Both pathways demand extensive evidence of safety and effectiveness before a product can reach consumers.
High-risk medical devices, classified as Class III, also require premarket approval. These are devices that sustain or support human life, play a major role in preventing serious health problems, or carry a significant risk of illness or injury. Think implantable heart valves, pacemakers, or breast implants. The FDA requires manufacturers to submit valid scientific evidence proving these devices are safe and effective before they can be marketed.
In 2024, the FDA approved 50 novel drugs that had never before been approved or marketed in the United States, including both new molecular entities and new therapeutic biologics.
How a Drug Gets Approved
Getting a drug approved is a years-long process built around three phases of clinical trials, each with a different purpose and scale.
Phase 1 trials enroll 20 to 100 participants, often healthy volunteers, and last several months. The goal is basic safety: researchers figure out how the drug interacts with the human body, what doses people can tolerate, and what immediate side effects occur. Phase 2 trials expand to several hundred people who actually have the condition the drug targets. Over several months to two years, researchers gather more safety data and refine their approach for larger studies. Phase 3 trials are the pivotal stage, enrolling 300 to 3,000 participants over one to four years. These studies are designed to demonstrate whether the drug provides a real treatment benefit and to capture the broadest picture of side effects.
Before a manufacturer can file for approval, it generally needs adequate data from two large, controlled clinical trials. The FDA then reviews all the preclinical and clinical evidence, manufacturing processes, and proposed labeling before making a decision.
Approved vs. Cleared vs. Authorized
This is where consumer confusion runs deep. “FDA approved,” “FDA cleared,” and “FDA authorized” are three different legal designations with very different evidence standards.
FDA approved applies to drugs, biologics, and Class III medical devices. It requires the most rigorous evidence, including clinical trials proving safety and effectiveness.
FDA cleared applies to lower- and moderate-risk medical devices (Class I and Class II) that go through the 510(k) pathway. In this process, a manufacturer demonstrates that its device is “substantially equivalent” to a device already legally on the market. This does not require the same level of clinical evidence as full approval. Most medical devices you encounter, from bandages to blood pressure monitors, are cleared rather than approved.
FDA authorized typically refers to Emergency Use Authorizations, which allow products to be used during public health emergencies before completing the full approval process. This became widely familiar during the COVID-19 pandemic.
A product labeled “FDA cleared” has not gone through the same process as one labeled “FDA approved.” If a company uses these terms loosely or interchangeably, that’s a red flag.
Products the FDA Does Not Approve
Dietary supplements do not require FDA approval before going to market. Under the Dietary Supplement Health and Education Act of 1994, manufacturers are responsible for ensuring their products are safe, but they don’t need to prove safety or effectiveness to the FDA before selling them. Supplements cannot legally claim to treat, cure, or prevent disease, though they can make certain structure and function claims (like “supports immune health”). If a supplement label implies it’s FDA approved, that claim is misleading.
Cosmetics also do not require premarket FDA approval. The FDA does not mandate that cosmetic manufacturers test their products for safety before sale, though it strongly urges them to do so. The exception is color additives, which must comply with specific regulations. Products that straddle the line between cosmetics and drugs, like anti-dandruff shampoos or sunscreens, must meet the drug approval requirements for their therapeutic claims.
Food products, including food additives, fall under FDA oversight but follow a separate regulatory framework that doesn’t involve “approval” in the way drugs do.
What Happens After Approval
FDA approval isn’t the end of the safety process. Because preapproval studies involve only several hundred to several thousand patients, they can’t catch every possible side effect. Rare reactions, long-term complications, and interactions that emerge in broader populations may only surface once millions of people are using a product.
The FDA maintains the Adverse Event Reporting System (FAERS), a database that collects safety reports on all approved drugs and therapeutic biologics. A team of safety evaluators, epidemiologists, and other scientists reviews these reports to detect new safety signals. When problems are identified, the FDA can update a product’s labeling with new warnings, issue safety alerts to healthcare professionals, or in serious cases, reconsider an approval decision entirely.
How to Verify a Product’s Approval Status
If you want to check whether a specific drug is actually FDA approved, the FDA’s Orange Book is the primary tool. You can search it online by brand name or active ingredient. The results show all approved products for a given ingredient, including generic versions, organized by dosage form and route. Each entry identifies the original reference product and any approved generics, along with a therapeutic equivalence code that indicates whether generics are considered interchangeable.
For biological products like biosimilars, the FDA maintains a separate resource called the Purple Book. Both databases are freely accessible on the FDA’s website and are updated regularly. If a product doesn’t appear in either database, it hasn’t received FDA approval as a drug or biologic.