How to Inject Semaglutide: Start With the Device and Product

To inject semaglutide correctly, start with the exact product and device in your hand. Ozempic and Wegovy injection presentations include different pens and prefilled syringes; they do not all work the same way. Some semaglutide products are tablets and should never be injected.

Before the first injection, have your healthcare professional demonstrate your supplied device and watch you use it correctly. The steps below explain the current US manufacturer instructions; keep the matching leaflet beside you. If the carton or device differs from the one described, pause and ask the pharmacist to identify it before using it.

Identify the device before opening it

Check the product name, prescribed strength, expiration date, and appearance. Injectable semaglutide should be clear and colorless. Do not use a device that is damaged or a solution that is cloudy, colored, or contains particles. Follow the exact leaflet’s storage and discard rules; do not assume different devices have the same limits.

Ozempic injection pen: dose counter, then six seconds

Use the Ozempic US Instructions for Use for your specific pen strength. The manufacturer also provides a pen-use guide and demonstration.

1. Wash your hands. Check the pen label and solution, remove the pen cap, and attach a new compatible needle. Remove both needle caps. Never share the pen, even if the needle is changed, and never reuse or share needles.
2. Before the first injection with each new pen, turn to the flow-check symbol. Hold the needle pointing up and press the dose button until the counter shows 0. A drop should appear. If no drop appears, the IFU allows repeating the flow check up to six times, then changing the needle and repeating once more. If there is still no drop, do not use the pen; contact Novo Nordisk at 1-888-693-6742.
3. Select the prescribed dose using the dose counter and pointer. Do not count clicks to calculate a dose. If there is not enough medicine for the full prescribed dose, use a new pen rather than improvising a partial dose.
4. Choose the abdomen, thigh, or upper arm and change the spot with each injection. Clean with an alcohol swab and let it dry. Insert the needle under the skin as your healthcare professional demonstrated. Do not inject into a vein or muscle.
5. Keep the counter visible. Press and hold the dose button until 0 lines up with the pointer, then continue holding the button and keep the needle in your skin while counting slowly to six. Remove the needle, then release the button. Removing the needle too early can leave part of the dose undelivered.
6. Carefully unscrew the needle and put it in an FDA-cleared sharps container right away. Do not put the needle caps back on when disposing of it this way. Replace the pen cap, and store the pen without a needle attached.

Do not draw medicine out of an Ozempic pen with a syringe. If the counter does not return to 0, follow the blocked-needle instructions in the IFU rather than assuming a full dose was given or immediately adding another injection.

Wegovy single-dose pen: watch the yellow bar

This section applies to the single-dose pen, including the separately labeled Wegovy HD single-dose pen. It does not describe FlexTouch or a prefilled syringe. Use the matching section of the Wegovy US Instructions for Use; the manufacturer’s single-dose pen demonstration is another useful training reference.

Wash your hands and check the medicine and prescribed dose. Choose the front of a thigh, lower abdomen at least 2 inches from the belly button, or upper arm. Avoid skin that is tender, bruised, red, hard, scarred, or marked by stretch marks. Change the exact spot each week. Clean with an alcohol swab or soap and water, let it dry, and do not touch the cleaned area.

Remove the cap straight off only when ready. Do not touch or push the needle cover with your fingers. Press the pen firmly against the skin and maintain pressure while watching the yellow bar.

• The first click means injection has started.
• The second click means injection is still ongoing.
• Keep pressing until the yellow bar stops moving, then lift the pen slowly.

The IFU describes an injection lasting about 5–10 seconds, but the yellow bar—not a guessed time or the second click—is the completion cue. If the bar does not begin moving, press more firmly. If it still will not move, stops during injection, or medicine leaks onto the skin, contact your healthcare professional or Novo Nordisk at 1-833-934-6891. Ask what to do about a possible incomplete dose; do not repeat it on your own. Once removed, the needle cover locks and the injection cannot be restarted.

Put the whole used pen into an FDA-cleared sharps container immediately. It is for one use and should not be reused, recycled, or put loose into household trash.

Wegovy FlexTouch: four doses, a different pen

The current US FlexTouch IFU describes a pen containing four fixed 2.4 mg doses. Use it only when that is the presentation and dose you were prescribed. It is not the yellow-bar single-dose pen and should not be used to invent smaller doses by counting clicks.

Attach a new needle and remove both caps. Check flow before the first dose from each new pen; for later doses from that pen, the IFU moves directly to selecting the dose. Select the prescribed 2.4 mg on the counter. If the counter stops before the full dose, discard that pen and use a new one.

Clean and dry the chosen site, keeping abdominal injections at least 2 inches from the belly button and changing spots. Insert as trained, press until the counter shows 0, and continue pressing with the needle in the skin while counting slowly to six. Remove the needle, then release the button. Remove and discard the needle immediately, replace the pen cap, and store without a needle attached. After the four doses, discard the pen even if medicine remains; never withdraw the remainder with a syringe.

A reused multi-dose pen is still for one patient. Never share it, even with a new needle. If the flow check fails, follow the full FlexTouch troubleshooting instructions before using the device.

Ozempic or Wegovy prefilled syringe: one complete dose

Both the current Ozempic and Wegovy US labels include single-dose prefilled syringes. Use the matching product leaflet: Ozempic syringe IFU or Wegovy syringe IFU. Each describes one syringe containing one complete prescribed dose. Wash and dry your hands, take it out by holding the glass barrel, and check the label, date, and clear, colorless solution. Do not use a syringe that was dropped or damaged. Normal air bubbles do not need to be removed.

Choose the abdomen at least 2 inches from the belly button or a thigh; the back of the upper arm requires someone else’s help. Change the spot, clean it, and let it dry. Pull the needle cap straight off and dispose of it in the sharps container. Do not recap it.

Pinch and hold a fold of skin throughout the injection. Fully insert the needle at 45 degrees, keep that angle, and gently push the plunger all the way down with constant pressure. The dose is complete when the plunger is at the bottom and the syringe is empty. Withdraw at the same angle and immediately place the syringe into an FDA-cleared sharps container. If there is a little blood, press lightly with gauze or cotton without rubbing.

This 45-degree instruction belongs to those specific prefilled syringes. It is not a universal angle for every semaglutide pen or syringe.

Tablets and compounded products need their own instructions

If your carton says tablets, do not use an injection tutorial. Rybelsus, Ozempic tablets, and Wegovy tablets have their own oral dosing instructions. The same ingredient name does not make their formulations or doses interchangeable.

For compounded semaglutide, “units” are not a universal amount of active drug. The FDA has reported dosing errors involving confusion between milligrams, milliliters, syringe markings, and varying concentrations. Have the prescriber and dispensing pharmacy confirm the prescribed amount, vial concentration, exact syringe, and matching mark. If anything conflicts or is unclear, do not inject until they resolve it. This article cannot provide a units conversion for an unidentified vial.

When symptoms should interrupt the routine

Do not use semaglutide if you have a personal or family history of medullary thyroid carcinoma, MEN 2, or a previous serious allergic reaction to semaglutide or the product’s ingredients. Read the medication guide and review relevant medical conditions with your prescriber before starting.

Stop using the product and call your healthcare provider right away for severe abdominal pain that will not go away, with or without nausea or vomiting; pain may reach the back. This is the label action for possible pancreatitis. Stop using it and get medical help right away for a serious allergic reaction, including trouble breathing or swallowing, swelling of the face, lips, tongue or throat, severe rash or itching, or fainting.

Report nausea, vomiting, or diarrhea that will not go away promptly because dehydration can cause kidney problems. If you use insulin or a sulfonylurea, know the plan for recognizing and treating low glucose. Worsening injection-site redness, warmth, swelling, drainage, or fever also deserves medical assessment.

The useful routine is simple: identify the exact device, follow its own preparation and completion signals, dispose of sharps safely, and record the injection date. Familiarity with one semaglutide product is a starting point for learning the next device—not proof that the steps are the same.