A severe allergic reaction needs help now
A severe allergic reaction may develop fast and cause breathing or swallowing trouble, swelling of the face or tongue, or fainting. A
Call 911 or go straight to the nearest emergency room. A
These signs call for urgent help; they do not let you diagnose yourself. A
Custom preparation can have quality problems
Compounding means making or mixing medicine to order.
Poor compounding may put germs in medicine or leave it with too much or too little active ingredient, the substance that makes the medicine work. B
Compounded products reach patients without a prior FDA check of quality, benefit or harm as of September 26, 2026; the FDA is the federal medicine agency. C
Ask in your own words
What are the possible harms of this product, and who can answer if something changes?
An unclear measurement needs a clinician’s answer
By September 26, 2026, the FDA had reports about errors in measuring compounded semaglutide injections; some involved hospital care. D
Take an unclear label or instruction back to the prescriber or pharmacist for an explanation.
Storage depends on the product
Some peptide medicines must be kept cold; others are stored at room temperature, so one storage rule cannot cover them all. E
Follow the exact product’s label and pharmacy instructions. E
Ask how to check a delivery and what to do if it arrives in poor condition.
Patients can report a medicine problem
Patients and health professionals can send reports about medicine problems to MedWatch, the FDA’s reporting program. F
A report cannot establish that the medicine caused what happened; the FDA warns against drawing that conclusion. G
Sources for this note
- A
- B
- C
- D
- EFDA-reviewed tesamorelin product labelNIH semaglutide patient information
Evidence as of September 17, 2026.
Back to the note ↑ - FFDA MedWatch reporting informationFDA online medicine-problem reporting
Evidence as of September 17, 2026.
Back to the note ↑ - G