About FDA
What is a Warning Letter?
When FDA finds that a manufacturer has significantly violated FDA regulations, FDA notifies the manufacturer. This notification is often in the form of a Warning Letter.
The Warning Letter identifies the violation, such as poor manufacturing practices, problems with claims for what a product can do, or incorrect directions for use. The letter also makes clear that the company must correct the problem and provides directions and a timeframe for the company to inform FDA of its plans for correction. FDA then checks to ensure that the company’s corrections are adequate.
- Where can I find information about adverse reactions to a medicine prescribed for my child?
- Where can I find information about medicines prescribed for my child?
- Materials from Webinar on Access to Investigational Drugs
- FDA Basics Webinar: "Mini-Sentinel," FDA's New Tool for Monitoring the Safety of FDA-Approved Medical Products
- How FDA Evaluates Regulated Products: Drugs
- FDA Webinar on Prescription Drug Shortages
- FDA Webinar on "Bad Ads" Program
- FDA Basics Webinar on Generic Drugs
- FDA Basics Videos: Tim Coté on Orphan Drugs
- What is an FDA Drug Safety Communication?
- What is counterfeit medicine?
- FDA Basic Video: Interview with John Jenkins on New Drugs (Video)
- What are unapproved drugs and why are they on the market?
- How can I stay better informed about drugs? Is there a reliable website FDA recommends?
- How do I discard medicine that I no longer need, do I just throw it in the garbage?
- How do I report a bad reaction to medicine or medication error to FDA?
- Does FDA approve the proprietary names of prescription drugs?
- What does FDA require drug manufacturers to do to prevent contaminated drugs? If contamination occurs, how must they correct the problem?
- How does FDA help consumers when drug shortages happen?
- Does FDA approve the information given out by pharmacies when I pick up my medicine?
- How does FDA decide when a drug is not safe enough to stay on the market?
- How do I find out if a drug is approved? Is there a Web site I can go to?
- What is the approval process for a new prescription drug?
- What is a Warning Letter?
- Can FDA ban direct-to-consumer drug advertising?
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