The Ozempic pen is designed to be simple, but the first time you hold one, the steps can feel unclear. Whether you couldn’t find the right video or want written instructions you can reference at your own pace, here’s a complete walkthrough of how to prepare, prime, inject, and store your Ozempic pen.
What Comes With Your Pen
Each Ozempic pen comes with ultra-thin 32-gauge, 4 mm needles included in the box. The red label pen includes 6 needles, while the blue and yellow label pens each include 4. You’ll attach a fresh needle before each injection and remove it afterward. Never reuse a needle.
Check the Pen Before You Start
Before your first injection from a new pen, look at the liquid through the pen window. It should be clear and colorless. If the liquid looks cloudy, discolored, or contains particles, don’t use it. Also confirm the label on the pen matches what your prescriber told you to take, since Ozempic pens come in different dose strengths with different colored labels.
Prime a New Pen With a Flow Check
Every time you start a brand-new pen, you need to prime it before your first dose. This step pushes air out of the needle and confirms that medication is flowing properly. You only do this once per new pen, not before every weekly injection.
To prime, attach a new needle, then turn the dose selector until the dose counter displays the flow check symbol (a small dot or line, not a number). With the needle pointing up, press and hold the dose button until the counter returns to zero. You should see a small drop of liquid appear at the needle tip. If no drop appears, repeat the flow check up to six times. If you still don’t see a drop after that, the pen is defective and shouldn’t be used.
How to Set Your Dose
Turn the dose selector until the dose counter shows the number your prescriber assigned. The counter clicks as you turn, and you can turn it back if you go past your dose. If the counter stops before reaching your prescribed number, the pen doesn’t have enough medication left. In that case, you’ll need to switch to a new pen.
Choosing and Rotating Injection Sites
You can inject Ozempic in three areas: the front of your thigh, your lower abdomen (at least two inches from your belly button), or the back of your upper arm. All three locations deliver the medication with the same effectiveness, so choose whichever feels most comfortable.
The key rule is rotation. Try to use a different spot each week. If you injected into your left thigh last week, switch to your abdomen or right thigh this week. Rotating helps prevent skin irritation, lumps, or changes in the tissue under your skin that can develop when you inject the same spot repeatedly.
Injecting Step by Step
Clean the injection site with an alcohol swab and let it dry. Pinch a fold of skin if your prescriber recommends it, then insert the needle straight in at a 90-degree angle. Press the dose button all the way down and watch the dose counter. When it reaches zero, keep the needle in your skin and slowly count to six. This pause ensures the full dose is delivered, since pulling out too early can cause medication to leak back out.
After counting, release the button and withdraw the needle. You might see a tiny drop of liquid at the injection site. That’s normal and doesn’t mean you lost your dose. If you see a larger amount leaking, hold the needle in longer next time. Don’t rub the site afterward.
Removing and Disposing of Needles
After every injection, carefully remove the needle from the pen and place it directly into a sharps disposal container. Never throw loose needles into regular trash. If you don’t have a sharps container, a heavy-duty plastic container with a screw-on lid (like a laundry detergent bottle) works as a temporary substitute.
Fill the container no more than three-quarters full. When it’s time to get rid of it, check your local options: many pharmacies, hospitals, and health departments have drop-off boxes. Some communities offer mail-back programs or special waste pickup services. Replacing the pen cap after removing the needle protects the pen between uses and keeps the remaining medication sealed.
Storage Between Injections
Before you use a pen for the first time, keep it in the refrigerator between 36°F and 46°F. Once you’ve used it, you have two options: continue refrigerating it, or store it at room temperature between 59°F and 86°F. Either way, a pen in use is good for 56 days (8 weeks) from the date of first use, regardless of how much medication remains inside.
Don’t freeze the pen, and don’t leave it in a hot car or in direct sunlight. If you’re traveling, an insulated pouch with a cool pack works well, but make sure the pen doesn’t come into direct contact with ice or a frozen gel pack.
What to Do if You Miss a Dose
Ozempic is a once-weekly injection, ideally on the same day each week. If you forget, take the missed dose as soon as you remember, as long as your next scheduled dose is at least two days away. If it’s closer than that, skip the missed dose entirely and resume on your normal day. Never take two doses in the same week to make up for a missed one.
If you’ve missed two or more consecutive weeks, contact your prescriber before restarting. After a gap that long, you may need to restart at a lower dose and work back up to avoid the nausea and digestive side effects that are common when your body isn’t adjusted to the medication.
Quick Troubleshooting
- The pen looks full after injecting: Ozempic pens contain more liquid than you’ll use at any single dose. The pen is designed for multiple weeks of injections, so seeing liquid remaining after a dose is completely normal.
- The dose counter won’t reach your prescribed number: The pen doesn’t have enough medication left. Use a new pen for your full dose.
- No drop appears during the flow check: Repeat the priming process. If it fails after several attempts, the pen may be faulty.
- Pain at the injection site: Let refrigerated medication sit at room temperature for about 30 minutes before injecting. Cold medication tends to sting more. Also make sure you’re using a fresh needle each time, since reused needles become dull and cause more discomfort.

