Check the medicine
When a package reaches you
Match the product, ask about storage, and have a way to resolve a problem.
Product and safety notes as of September 2026.
Storage depends on the product
Cold-storage needs vary among peptide medicines, so one rule cannot cover them all. The exact product label and pharmacy instructions matter.
GLP-1 is one of the body's signals for managing appetite and blood sugar. The Food and Drug Administration (FDA) advises avoiding injectable GLP-1 medicine if it reaches you warm or has received too little refrigeration.
Medicines that copy that signal include semaglutide and tirzepatide.
Before delivery, get instructions on storing the particular product you will receive. Keep the pharmacy's way of answering delivery questions nearby.
A damaged or unclear label needs an answer
FDA lists damaged packaging, missing instructions, and incorrect pharmacy details among its warning signs for online weight-loss care.
For a problem with the package, keep its label and the order details together when contacting the pharmacy. Describe what arrived rather than trying to explain away the difference.
Ask who will confirm the contents and handle a replacement or other next step. Keep the response with your care notes.
Clear instructions belong with the medicine
Measuring mistakes involving injections of compounded semaglutide have been reported to FDA. Hospital care was described in some of those reports.
A medicine prepared for an order is called compounded. Ask the health professional who ordered the medicine and the pharmacist about the amount, equipment, or instructions. If the label and measuring tool use different units, ask them to explain how they match. Do not guess the amount to measure.
For severe symptoms, use the urgent-help page rather than waiting for a routine reply.
Read the urgent-help notesSource notes for this page
The temperature advice concerns injectable GLP-1 medicines. That advice cannot serve as a storage rule for all peptides.