Before an injection
Before using it, get answers about the exact medicine.
Ask the pharmacist to explain the label in words you understand. Bring any unclear instruction back to the clinician (a doctor or other health professional) or pharmacist.
Prices and rules can change. Open ‘Check the source’ below each section to find the date for its facts.
Storage depends on the product
Peptides do not share a single storage rule. Cold storage is required for some products; others are stored at room temperature.
Use the actual label and the supplying pharmacy’s instructions for the product in front of you.
Check the source
Medicine storage: checked September 17, 2026.
Tesamorelin (Egrifta SV): storage and product labelMedlinePlus: semaglutide storage informationA warm delivery can matter
GLP-1 is a body signal involved in appetite and blood sugar; a signal of this kind is called a hormone. Some medicines copy that signal and use the same name.
The US drug regulator, the Food and Drug Administration (FDA), advises against using injectable GLP-1 medicine that arrives warm when it requires cold storage.
Check the source
Warm deliveries: checked September 17, 2026.
Semaglutide approval; Tirzepatide approval: checked September 26, 2026.
FDA approval records (data)FDA: weight-medicine concernsA measurement problem is not a math exercise
Compounded describes medicine a pharmacist or doctor prepares to meet a patient’s needs.
The FDA has received reports of people using the wrong amount of compounded semaglutide injections. Hospital care was needed in some of those reports.
Ask the pharmacist to explain any unclear measurements or instructions on the actual label.
Check the source
Meaning of made-to-order medicine: checked September 17, 2026.
Reports of wrong medicine amounts: checked September 26, 2026.
FDA: what made-to-order medicine meansFDA: weight-medicine concernsAsk about the particular medicine’s effects
How often the injection spot feels sore or itchy depends on the medicine. There is no single rate that describes all peptide injections.
When discussing treatment, tell the clinician if you are pregnant, are breastfeeding, or plan a pregnancy. Ask for advice on the particular medicine.
Check the source
Injection-spot reactions; Semaglutide and pregnancy; Tirzepatide and pregnancy; Unapproved medicines and pregnancy: checked September 17, 2026.
Tesamorelin (Egrifta SV): storage and product labelSemaglutide (Ozempic): product labelSemaglutide (Wegovy): product labelTirzepatide (Zepbound): product labelFDA: what made-to-order medicine meansHave a container for used sharps
Sharps means used needles and other items with sharp points. FDA advice calls for a proper sharps container, with no loose needles in trash or recycling and none flushed down a toilet.
Check the source
Used needle disposal: checked September 17, 2026.
FDA: containers for used sharps