Check these points
Ask about the preparation
As the federal drug agency, the FDA is formally named the Food and Drug Administration.
The FDA told peptide sellers that injections put substances straight into the body, past some of its barriers against germs and poisons. Germs or poisons in a shot can cause serious harm.
The FDA warns that poorly made compounded medicine can contain germs or other unwanted substances, or the wrong amount of the part that does the work.
The active ingredient is the portion of a medicine responsible for its effect.
Ask for product-specific storage guidance
Storage differs between peptide products; some need refrigeration and others are kept at room temperature.
Ask the pharmacist to explain the label for the product you receive.
Resolve unclear instructions with the care team
The FDA has received reports of measuring errors with compounded semaglutide injections, including cases needing hospital care, as of September 26, 2026.
Ask the prescriber or pharmacist to explain any unclear label or instructions before using the medicine.
Notes that explain the checks
Know when help is urgent
MedlinePlus describes a severe allergic reaction as an emergency; seek urgent medical help for severe trouble breathing or swelling in the face or tongue.
Sepsis is the body’s extreme reaction to infection; the CDC calls it an emergency that threatens life.
Ask the person caring for you for a clear plan for urgent concerns and for other problems after treatment.
Report a suspected problem
Patients can report a suspected medicine problem through MedWatch, the FDA’s safety-reporting service.
A report documents a concern, but that alone is not proof that the medicine caused the problem.