Ozempic injection sites and technique: complete how-to (2026)

Where to inject: the 3 FDA-approved sites

Ozempic's FDA-approved injection sites are the abdomen, the front of the thigh, and the back of the upper arm. All three are subcutaneous (under the skin, not into muscle). The pen needle is short enough that you can't accidentally inject too deep.

Abdomen: most patients' preferred site. Inject anywhere on the lower abdomen except within 2 inches of the navel. This area has consistent subcutaneous fat a is easy to see and reach.

Front of thigh: top half of the thigh, on the front or outer side. Avoid the inner thigh (near the femoral artery) and below the knee.

Back of upper arm: requires reaching across with the opposite hand or having someone else inject. Many patients find this site impractical for self-injection.

How to inject: step-by-step

1. Wash your hands. Take the pen out of the refrigerator ~15 minutes before injection so the medication isn't cold (cold injection stings more).

2. Check the pen window: liquid should be clear and colorless. Don't use if cloudy or discolored.

3. Attach a new needle. Each injection requires a fresh sterile needle. Don't reuse.

4. Prime the pen (first use or if needle blocked): dial to 'flow check' position, press the button until you see a drop of medication at the needle tip.

5. Dial your dose. Confirm the dose number in the window matches your prescribed dose.

6. Choose injection site (rotate from last week's site — see rotation schedule below).

7. Pinch up a fold of skin if you're thin (this lifts the subcutaneous tissue away from muscle).

8. Insert the needle straight into the skin at 90 degrees. Press the injection button fully and hold for 6 seconds. The pen will click when the dose is delivered.

9. Remove the needle, dispose in a sharps container (don't recap). Apply gentle pressure if there's a small drop of blood. Don't rub.

Rotation schedule: why this matters

Repeated injection in the same exact spot causes lipohypertrophy — a thickened, sometimes lumpy area of subcutaneous tissue that absorbs the medication unreliably. Lipohypertrophy can reduce drug absorption by 20-40%, meaning your effective dose is lower than what you injected.

Best rotation practice: choose a different site each week. Within a site, move at least 1 inch from the previous week's injection point. A simple system: week 1 right abdomen upper, week 2 left abdomen upper, week 3 right thigh, week 4 left thigh, then repeat.

Avoid injecting into: scars, stretch marks, moles, areas with active rash or infection, areas you'll be sitting on directly (back of upper thigh), and areas already showing lipohypertrophy.

Timing: when to inject

Ozempic is once-weekly — pick a day and time that works for you and stick with it. Most patients pick a day they're home and not stressed (Saturday or Sunday morning is common).

Time of day doesn't matter for the medication. It matters for managing side effects: some patients prefer evening injections so peak nausea (24-48 hours later) happens while they're sleeping. Others prefer morning so they can monitor symptoms.

If you forget a dose: if it's within 5 days of your scheduled day, inject the missed dose now and resume your normal schedule. If it's more than 5 days late, skip the missed dose and inject on your next regular day. Don't double up.

Storage and travel

Refrigerate unused pens (36-46°F / 2-8°C). Don't freeze — frozen pens must be discarded.

In-use pens (after first injection): can be kept at room temperature (below 86°F / 30°C) or refrigerated for up to 56 days. Discard after 56 days even if medication remains.

Travel: TSA allows injectable medications through security in carry-on bags. Bring the original prescription label or pharmacy receipt. For trips longer than a few days, plan refrigeration at your destination — most hotels have minifridges; otherwise an insulated cooler with ice packs works for short flights. Keep pens away from direct sunlight at all times.

Common problems and fixes

Pain or stinging during injection: usually means injection was too cold (let pen warm up next time), too fast (press button slowly), into a sensitive area, or into scar tissue. Try a different site next week.

Bruising or bleeding at injection site: small bruising is normal occasionally. Frequent bruising means you may be hitting small blood vessels — try slightly different sites within the rotation area.

Lump or hard area at old injection sites: this is lipohypertrophy. Stop injecting in that area, let it resolve over 6-12 months, and adjust rotation schedule to prevent recurrence.

Liquid leaks out when you remove the needle: leave needle in for the full 6 seconds, then remove slowly. A small drop is normal; significant leakage means you may have removed the needle too quickly.

Forgot to refrigerate the pen: in-use pens are stable at room temp for 56 days. Unused pens left at room temp for more than 30 days should be discarded.