How to use the Ozempic pen: a step-by-step injection guide
Medically reviewed by Kevin Brandstetter, M.D.Last reviewed September 28, 2026
Inject Ozempic under the skin of your abdomen, thigh or upper arm once a week, on the same day, at any time, with or without food. Attach a new needle, run a flow check on each new pen, dial your dose, press until the counter reads 0, then hold for a slow count of 6.
Before you start
Ozempic now comes two ways: a multi-dose, dial-a-dose pen and, since the May 2026 label, a single-dose prefilled syringe (0.25, 0.5 or 1 mg). Check which one your pharmacy dispensed, because the steps differ. For the pen, have ready a new NovoFine Plus 32G 4 mm needle (one is supplied per dose), an alcohol swab, gauze and a sharps container. Tell your prescriber about any personal or family history of medullary thyroid carcinoma or MEN 2, where Ozempic must not be used, and about pancreatitis, diabetic eye disease, kidney problems, pregnancy plans, or use of insulin or a sulfonylurea. Do not use the pen without training, and never share it, even with a fresh needle.
Step by step
Check the pen and the medicine
Wash your hands. Read the name and colored label to confirm it is Ozempic at the strength you were prescribed. Pull off the pen cap and look through the window: the liquid must be clear and colorless. If it looks cloudy, contains particles or the pen was frozen, do not use it.
Attach a new needle
Tear the paper tab off a new needle, push it straight onto the pen and turn until tight. Pull off the outer needle cap and keep it. Pull off the inner cap and throw it away. The Instructions for Use warn that if both caps are not removed, no medicine is injected.
Flow check a new pen only
Before the first injection from each new pen, turn the dose selector to the flow-check symbol, point the needle up and press the dose button until the counter shows 0. A drop should appear. If not, repeat up to 6 times, then change the needle and try once more. Skip this step on a pen already in use.
Dial your dose
Turn the dose selector until the counter lines up with your dose. The 2 mg/3 mL pen dials 0.25 mg or 0.5 mg; the 4 mg pen gives 1 mg and the 8 mg pen gives 2 mg. Read the counter, not the clicks. If the counter stops short, the pen is empty for that dose; use a new pen.
Clean the injection site
Choose a spot on the abdomen at least 2 inches from the belly button, the front of the thigh, or the upper arm, and not the exact spot used last week. Wipe it with an alcohol swab and let the skin dry fully before you insert the needle.
Inject and hold for 6 seconds
Insert the needle as your clinician showed you, keeping the dose counter visible and your fingers off it. Press and hold the dose button until the counter shows 0, then keep pressing while you count slowly to 6. Removing the needle early can leave a stream at the tip, meaning part of the dose was lost.
Remove the needle and cap the pen
Take the needle out of your skin, then release the button. Unscrew the needle without recapping it and drop it straight into a sharps container. If there is no container, slide the needle into the outer cap one-handed. Put the pen cap back on to protect the medicine from light.
If you use the prefilled syringe instead
Hold the glass barrel, check the label and expiry, and confirm the liquid is clear. Small air bubbles are normal and should be left alone. Pinch the skin, insert at 45 degrees, push the plunger to the bottom, withdraw at 45 degrees and discard the whole syringe.
Schedule
Ozempic is a once-weekly injection taken on the same day each week, at any time of day, with or without meals. The label starts at 0.25 mg weekly for 4 weeks to limit stomach side effects. After 4 weeks it rises to 0.5 mg. If more glucose control is needed after at least 4 weeks on a dose, your prescriber may step up to 1 mg, then to 2 mg, the maximum. In type 2 diabetes with chronic kidney disease, the label's maintenance dose is 1 mg. You can move your injection day as long as the two doses are at least 2 days (more than 48 hours) apart.
How and where to take it
The label lists three areas for the subcutaneous injection: the abdomen, the thigh and the upper arm. On the abdomen, keep at least 2 inches away from the belly button. The prefilled-syringe instructions say to use the back of the upper arm only with help from another person. Change the exact spot every week, even when staying in the same region. If you also inject insulin, the label allows the same body region but not adjacent spots, and the two must never be mixed in one injection. Skip skin that is bruised, tender, scarred or hard.
Storage
Before first use, keep Ozempic pens in the refrigerator at 36°F to 46°F (2°C to 8°C), in the original carton, away from the freezer and the cooling element. Once a pen is in use, it lasts 56 days either at room temperature, 59°F to 86°F (15°C to 30°C), or in the refrigerator. Discard it on day 56 even if medicine remains, and write that date down. Store it with the cap on and no needle attached. Single-dose syringes stay refrigerated but can be kept at 46°F to 86°F for up to 28 days. Never use Ozempic that has frozen.
If you miss a dose
The Ozempic label gives a 5-day window. If you remember within 5 days of the missed injection, take it as soon as you can. If more than 5 days have passed, skip that dose and take the next one on your usual day. Either way, go back to your normal once-weekly schedule afterwards. Do not take two doses to make up, and if you move your injection day, keep at least 48 hours between doses.
If you take too much
If you inject more Ozempic than prescribed, the Medication Guide says to call your healthcare provider or the Poison Help line at 1-800-222-1222, or go to the nearest emergency room right away. Expect possible severe nausea and vomiting, and low blood sugar if you also take insulin or a sulfonylurea. The label advises supportive care and notes semaglutide's long half-life of about one week, so symptoms may last several days.
What to avoid
Do not share your pen, reuse needles, or draw Ozempic out of a pen with a syringe, which the Instructions for Use prohibit. Do not leave the pen in a car or anywhere it can get too hot or too cold. Limit alcohol, particularly with insulin or a sulfonylurea, because alcohol can deepen low blood sugar, and take care driving if you feel shaky or dizzy. Tell your prescriber before surgery or sedation, since the label flags a risk of pulmonary aspiration.
Frequently asked questions
Does the Ozempic injection hurt?
Most people feel a brief sting at most. The pen ships with NovoFine Plus 32G needles that are 4 mm long, which reach the fat under the skin rather than the muscle. Letting the alcohol dry completely before inserting the needle, using a new needle every time, and moving to a different spot each week help keep discomfort down. Tell your prescriber about lasting redness, itching or lumps at the site.
Is it normal to bleed or see a drop after injecting?
Yes. The Ozempic Instructions for Use say a drop at the needle tip after injecting is normal and does not affect your dose. If blood appears at the site, press lightly with gauze or a cotton ball without rubbing. A steady stream from the needle, however, usually means it was pulled out before the 6-second count finished, so part of the dose may not have been delivered.
What about air bubbles in the pen or syringe?
With the pen, the flow check on each new pen is what confirms the medicine moves through the needle; you do not need to tap out bubbles. With the single-dose prefilled syringe, the Instructions for Use state that air bubbles are normal, do not affect the dose, and should not be removed. Push the plunger all the way to the bottom and the full dose is given.
How many clicks is each Ozempic dose?
Do not count clicks. The Instructions for Use say the selector clicks differently forwards and backwards, so only the dose counter and pointer show your dose. The 2 mg pen dials 0.25 mg or 0.5 mg, the 4 mg pen dials 1 mg and the 8 mg pen dials 2 mg. Dialing part-doses or extra doses by clicks is not how the pen is labeled to work.
How do I switch to a higher-strength pen?
Each Ozempic pen strength delivers set doses, so moving from 0.5 mg to 1 mg normally means a new 4 mg pen rather than dialing more on the old one. Finish or set aside the old pen as your prescriber advises, run a flow check on the new pen, and confirm the label strength before your first dose. Our titration planner can help you map the dates.
How do I travel with Ozempic?
Keep the pen with you in your carry-on bag, never in checked luggage or a parked car, where the Instructions for Use warn it can get too hot or cold. An in-use pen is fine at 59°F to 86°F for its 56 days, so no ice pack is needed for that one. Unopened pens need refrigeration. Pack spare needles and, as the Instructions for Use suggest, an extra pen.
Can I drink alcohol on Ozempic?
The Ozempic label does not ban alcohol, but it warns that low blood sugar is more likely when Ozempic is combined with insulin or a sulfonylurea, and alcohol can lower blood sugar further. Drinking can also add to nausea while doses are rising. If you drink, keep it moderate, eat with it, and ask your prescriber what is safe with your other medicines.
Can I change the day I inject?
Yes. The label allows the weekly day to change as long as at least 2 days (more than 48 hours) separate the last dose and the next. For example, if you inject on Monday and want to switch to Thursday, taking the next dose that Thursday is fine. The new day then becomes your regular day. Time of day does not matter.
Sources
- Ozempic prescribing information, Medication Guide and Instructions for Use (Novo Nordisk, revised May 2026)
- Ozempic (semaglutide) injection label, DailyMed (NLM)
- How to use the Ozempic pen, Novo Nordisk
- Ozempic: uses, dosage and side effects, Drugs.com
- Safe disposal of sharps, FDA
Compounded semaglutide and compounded tirzepatide are not FDA-approved generics of the brand-name products. A licensed 503A compounding pharmacy prepares each one for a single prescription.
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