NEW YORK — The US Food and Drug Administration has issued warning letters to four direct-to-consumer health testing companies for selling unauthorized blood collection kits for HIV diagnosis.

The U.S. Food and Drug Administration (FDA) sent over 50 warning letters to GLP-1 drug compounders and manufacturers in September 2025. The agency warned the companies that their statements that ...

The Food and Drug Administration sends warning letters to entities under its jurisdiction as part of its enforcement activities. Some letters are not posted for public view until weeks or months after ...

On December 17, the U.S. Food and Drug Administration (FDA) issued Warning Letters to five companies offering various GLP-1 products, including Semaglutide, Tirzepatide, Retatrutide, Cagrilintide, ...