Wegovy Pen Instructions

This is worth saying bluntly because the pages currently ranking for this query do not say it. One of the leading US results describes a single-use pen with a yellow bar and no needle to attach. One of the leading UK results describes a dial-a-dose pen with a dose counter and a priming step. Both are accurate about a real device. Neither tells you which one is in your hand, and they are not the same device.

Which one do you have?

You can tell in about five seconds without reading anything.

Section 2.1 of the prescribing information adds one restriction that only applies to one of them: "WEGOVY FlexTouch is not recommended for self-administration by those who are visually impaired." The single-dose pen Instructions for Use puts it less absolutely, saying that people who are blind or have vision problems should not use it without help from a trained person.

The same job, three different sequences

The steps that only exist on the FlexTouch

These are the three that cause trouble, because nothing on a single-dose pen prepares you for them.

The flow check, once per pen. Before the first injection from a new FlexTouch, you dial to the flow check symbol, hold the pen with the needle pointing up, and press the dose button until the counter reads zero. A drop of medicine should appear at the needle tip. The leaflet is specific about what to do if it does not: check again, which should only be done twice, then change the needle and check the flow one more time, and do not use the pen if a drop still does not appear. For the second, third and fourth doses from that pen, you skip the flow check entirely and go straight to setting the dose.

The dose counter is the completion signal, not a click count. The leaflet says to hold the dose button down until the counter shows zero, and warns separately not to set the dose by counting the clicks you hear, because the selector clicks differently turning forward and backward. It also says never to touch the dose counter while injecting, because that can stop the injection.

A counter that stops short means the pen is finished. If the dose counter will not reach 2.4 mg, there is not enough medicine left for a full dose. The instruction is to discard that pen and use a new one, not to take a partial dose and make it up. The same logic explains why the pen only lets you select 2.4 mg at all.

There is one failure mode worth memorising because it is silent: if zero never appears in the dose counter after you press continuously, the leaflet says you may have a blocked or damaged needle, and that you have not received any medicine even though the dose counter has moved. A dose counter that moved is not proof a dose went in.

The step that only exists on the syringe

The prefilled syringe asks you to pinch and hold a fold of skin between thumb and fingers, and to keep holding it throughout the injection. Neither pen does. The pens are pressed firmly flat. Its leaflet also tells you to take the syringe out of the carton by the glass barrel, never by the plunger rod or the needle cap, to leave the needle cap on until the moment you inject, and to pull the syringe out at a 45 degree angle when it is empty. It opens with a line that is unusually candid for a leaflet: "The prefilled syringe might be different than any other device you have used previously."

The signals the single-dose pen gives you

The single-dose pen has the fewest steps and the most feedback, which is why it is the one most third-party guides describe.

• The injection starts when the needle cover is pressed firmly against your skin. There is no button.
• You hear two clicks. Click one means the injection has started. Click two means it is ongoing. Neither means stop.
• It is finished when the yellow bar in the window has stopped moving. The leaflet warns that if you lift the pen early, or stop pressing firmly, medicine may appear on the skin or squirt from the needle and you may not get your full dose.
• The needle cover locks when the pen leaves your skin. You cannot pause and restart.
• If the yellow bar never starts moving, press the pen more firmly. If it still does not, the leaflet says to contact your healthcare provider or Novo Nordisk rather than to try again.

Its troubleshooting section carries one practical note that applies to site choice rather than technique: if you are having trouble injecting, change to a firmer injection site, such as the upper leg or upper arm. Where those areas are, and what the documents do and do not define about them, is covered in our Wegovy injection sites diagram.

Things that are true of all three

• Site. Upper arms, stomach and upper legs, keeping 2 inches or 5 cm from the belly button. Do not inject where skin is tender, bruised, red or hard, or into scars or stretch marks.
• Not the same spot twice in a row. You may use the same body area every week, but not the exact spot you used last time.
• Clean and dry. Wipe with an alcohol swab or soap and water, do not touch the site afterwards, and let it dry before injecting.
• Air bubbles. The single-dose pen leaflet says air bubbles are normal and do not affect your dose.
• A drop at the tip afterwards. Also normal, on the syringe and the FlexTouch. It does not mean you lost the dose.
• Blood at the site. Press lightly with gauze or a cotton ball, without rubbing.
• Sharps. Straight into an FDA-cleared sharps container. Never recap a needle.
• Never shared. Not between patients, even with a new needle.

Storage is where the devices diverge again

The single-dose pen and syringe live in the fridge at 2 to 8 degrees C, and if needed can be kept in the original carton at 8 to 30 degrees C for up to 28 days before the cap comes off. Past 28 days out of the fridge, frozen, or exposed to light or temperatures above 30 degrees C, the leaflet says to throw it away.

The FlexTouch is refrigerated before first use, and after first use it can be kept at 15 to 30 degrees C or back in the fridge. It is always stored with no needle attached, which matters more than it sounds: leaving a needle on is how a pen leaks or draws in air between doses. The carton lid carries a table for ticking off which of the four doses you have used.

When your pen changes

This is the part the label treats as a safety instruction rather than a convenience note. Section 17 of the prescribing information says:

The Medication Guide says the same thing to you directly: if you are prescribed a different Wegovy product at any point, get new training for it and read the Instructions for Use that came with it. Supply and formulary changes mean this happens to people mid-course, often without anyone flagging it, and the box looks broadly similar on the shelf.

Worth knowing alongside this: Wegovy is now also supplied as a 25 mg tablet taken once daily on an empty stomach in the morning with water, up to 4 ounces and no other liquids. That is a different product with a different dosing rhythm, not a pen instruction, but it is one more presentation to be clear about when a prescription changes.

Four doses in a pen is four chances to lose count

The single-dose devices cannot be miscounted: one box, one injection. The FlexTouch can, which is why Novo prints a tracking table inside the carton lid. The questions it is there to answer are whether this is dose two or dose three, whether you still owe a flow check, and which spot you used last Tuesday.

Jabby answers all three from one record. Each dose is logged with the date and the site on a body map, so the pen count and the rotation stay in the same place, and any side effect you note sits attached to the dose it followed. If you want the broader case for keeping that record, our GLP-1 tracker app overview covers it, and the injection therapy tracking guide goes through what gets logged.

Frequently asked questions

How many Wegovy devices are there?

Three injectables in the US: a single-dose pen, a single-dose prefilled syringe and the FlexTouch four-dose pen. Wegovy is also supplied as a tablet, which is swallowed rather than injected.

Do you attach a needle to a Wegovy pen?

Only on the FlexTouch, and a new one for every injection. NovoFine Plus 32G 4 mm needles come with the pen, and the leaflet says compatible needles up to 8 mm can be used.

Do you prime a Wegovy pen?

Only the FlexTouch, and only before the first of its four doses. For doses two, three and four you go straight to setting the dose.

What do the two clicks mean?

On the single-dose pen, click one is the injection starting and click two is it continuing. The finish signal is the yellow bar stopping, not a click.

How long does the injection take?

The leaflets do not give a time for the single-dose pen. They give a condition instead: keep pressing until the yellow bar has stopped moving. Watch the bar rather than the clock.

What if I miss a dose?

The prescribing information says that if the next scheduled dose is more than 2 days, or 48 hours, away, take the missed dose as soon as possible, and if the next dose is less than 48 hours away, do not take the missed one. Anything beyond that is a question for your prescriber.

Related reading

• Wegovy injection sites diagram, with every zone traced to the document that defines it.
• Where is the best injection site for Wegovy.
• Zepbound KwikPen needles, the same needle-attachment question on the tirzepatide side.
• Where to inject Ozempic, the same molecule in a multi-dose pen.
• GLP-1 tracker app overview.

Sources

• WEGOVY (semaglutide) injection and tablets, US prescribing information, Novo Nordisk. Sections 2.1, 2.3, 3, 16 and 17, the Medication Guide, and the Instructions for Use for the single-dose pen, WEGOVY HD, WEGOVY FlexTouch and the prefilled syringe.
• OZEMPIC (semaglutide) US prescribing information, Novo Nordisk, revised 05/2026. For the multi-dose pen comparison.
• ZEPBOUND KwikPen Instructions for Use, Eli Lilly and Company. For the cross-brand device comparison.

Jabby is free on the App Store and keeps your dose history, site rotation and side effects in one record you can show your prescriber.