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Severe allergic reactions
Read the symptom and emergency-help information.
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When does a problem need help?
Keep the medicine name and the care contact close at hand. Describe the problem in plain words.
A severe allergic reaction is an emergency.
MedlinePlus, a federal health information service, calls anaphylaxis a life-threatening allergic reaction.
Its symptoms can develop very quickly.
MedlinePlus says to seek emergency help by calling 911 or your area’s emergency number for severe symptoms, including a swollen tongue or difficulty breathing.
Give the medicine name and describe what happened. This symptom list is not a diagnosis.
Custom medicines have quality questions.
Poor compounding, meaning poor preparation of a medicine made to order, can leave unwanted material in it or the wrong amount of its active ingredient.
The FDA’s reports include errors in measuring compounded semaglutide for injection, with some cases needing hospital care, as of September 26, 2026.
Ask the pharmacist or prescriber to explain the instructions for the supplied product. Ask how those instructions differ from an online example.
Storage depends on the product.
There is no shared storage rule for every peptide medicine; some labels call for cold storage and others for room temperature.
Have the pharmacy explain how to store the particular product you received. Ask how to handle an unexpected delivery or a damaged package.
MedWatch gives patients a way to send medicine-problem reports to the FDA.
A submitted problem report alone does not prove that the drug caused it.
The record behind the answer.
Source record
Report a medicine problem
Keep the product name, label and a description of what happened.
Read the source