By Leah Douglas WASHINGTON, March 12 (Reuters) - Compounded weight-loss drugs that contain vitamin B12 and the main ...

Eli Lilly & Co. warned that the active ingredient in its weight-loss blockbuster Zepbound could pose a risk to patients when ...

Lilly is warning the public that tirzepatide mixed with B12 is creating an impurity with “unknown effects” in humans.

Combining tirzepatide with vitamin B12, a common additive in compounded versions of the drug, yields an impurity that could alter the drug’s toxicity profile and pose safety risks to patients, the ...

The FDA is taking no prisoners as it continues its efforts to combat widespread GLP-1 drug compounding. | In the letters sent ...

Testing identified significant impurity formation when tirzepatide is compounded with B12 variants, suggesting chemical incompatibility that is not evaluated under FDA review pathways. Uncertainty ...

Food and Drug Administration has issued warning letters to 30 telehealth companies for making false or misleading ‌claims ...

The FDA has issued 30 warning letters to telehealth companies for making false or misleading claims about compounded GLP-1 products on their websites. The letters cite violations including claims ...

March 4, 2026 - The U.S. Food and Drug Administration on Tuesday announced the issuance of 30 warning letters to telehealth companies for making false or misleading claims regarding compounded GLP-1 ...

Does Compounded Semaglutide Work for Weight Loss? Compounded semaglutide can be an affordable alternative to brand-name weight loss injections like Ozempic and Wegovy. But it’s important to understand ...

Compounded GLP-1s for Weight Loss: What Are They and Are They Safe? GLP-1s (glucagon-like peptide-1 receptor agonists) are medications used to treat type 2 diabetes and obesity. You’ve probably heard ...