An injection brings its own concerns
FDA, the US drug agency named Food and Drug Administration, has told sellers that injections can cause serious harm, as of September 17, 2026. [a]
FDA told sellers that shots go straight into the body, past some of its defences against germs and poisonous substances. [a]
A poorly made custom medicine may contain germs or the wrong amount of its main ingredient. [b]
A confusing label needs a clear answer
GLP-1 is a hormone: a chemical message in your body that affects appetite and blood sugar. GLP-1 medicines act like that message.
Arizona’s Nursing Board has issued an advisory about safety concerns with custom-made GLP-1 products, as of October 3, 2026. [c]
The advisory covers different label strengths, added ingredients and errors in measuring medicine. [c]
Ask the pharmacist to explain the actual label. Do not guess from another person’s label or an online calculator. [c]
Raise pregnancy questions directly
As of September 17, 2026, pregnancy information differs between medicine labels. The instructions for semaglutide and tirzepatide are not the same. [d]
A product made to order has no equivalent FDA-reviewed pregnancy information. [f]
Tell the person treating you about pregnancy, breastfeeding or plans for pregnancy. Ask about the exact medicine rather than the broad word “peptide”. [d]
Ask how concerns will be handled
Ask who to reach if something unexpected happens. Ask what would lead the person treating you to change or stop the plan.
Keep those answers with the prescription paperwork.