How to Self-Administer Your GLP-1 Shot: Step-by-Step

Self-injecting for the first time can feel daunting, but GLP-1 auto-injector pens are designed to make the process simple and nearly painless. Most people are comfortable doing it on their own within the first 1-2 doses. This guide walks you through each step.

Approved Injection Sites

GLP-1 medications are subcutaneous (under the skin, into the fat layer) injections. The three approved sites are:

• Abdomen: at least 2 inches (5cm) away from the navel
• Outer thigh: the fleshy part on the outside of the upper leg
• Upper arm: the back or outer side of the upper arm (harder to self-inject; consider having someone else help)

Step-by-Step: How to Inject

1. Wash your hands thoroughly with soap and water
2. Remove the pen from the refrigerator 30 minutes before injecting to bring it to room temperature — cold injections sting more
3. Check the pen: inspect the solution through the window. It should be clear and colorless (not cloudy, discolored, or contain particles). Check the expiration date
4. Attach a new needle if using a multi-dose pen. Remove the outer cap and keep the inner cap on until ready
5. Prime the pen if required (check your medication's instructions — many auto-injectors don't need priming)
6. Clean the injection site with an alcohol swab and let it dry completely — 15-20 seconds
7. Pinch a 1-2 inch fold of skin and fat between your thumb and index finger
8. Remove the needle cap, hold the pen perpendicular to the skin (90°)
9. Press firmly against the skin and press the injection button. Hold for a full 10 seconds before removing to ensure full dose delivery
10. Remove the pen and release the skin fold. Apply gentle pressure with a clean cloth if there's any bleeding — do not rub

Rotation Is Essential

Injecting in the same spot repeatedly causes lipohypertrophy — a buildup of hard, lumpy scar tissue under the skin. This tissue absorbs medication poorly and unpredictably, causing inconsistent dosing.

Create a rotation map: divide each injection site into zones and move to a new zone each week. For example, divide your abdomen into a clock face and move one "hour" clockwise each week.

Pen Storage

• Unopened pens: refrigerate at 36-46°F (2-8°C). Do not freeze
• In-use pens: can be stored at room temperature (below 77°F/25°C) for the duration of use — check your specific medication's guidelines
• Never leave pens in a hot car or direct sunlight
• Never reuse needles — always attach a new needle for each injection

What If I Miss a Dose?

For weekly injections: if you missed your regular day by 5 days or less, take it as soon as you remember. If it's been more than 5 days and your next scheduled dose is within 2 days, skip the missed dose and resume your normal schedule. Never take two doses at the same time. Always consult your medication's specific package insert and your doctor.