weight loss
∙6 minute read
Updated
If you've recently been moved up to the 7.2 mg dose of Wegovy, you'll have noticed that the pen looks and works differently from the lower doses. The Wegovy 7.2mg pen is a single-use, dose-set device, meaning there's no needle to attach, no priming step, and no dial to turn. The whole injection takes around 5 to 10 seconds.
This guide walks you through the full process, what to look out for, and what's worth doing or not doing to make each weekly injection as straightforward as possible.
If you used Wegovy at lower doses, you'll remember a fiddly process that involved selecting a dose, attaching a fresh needle, priming the pen, counting to six, removing the needle, and disposing of it separately. The new 7.2mg pen does away with all of that.
Three things to know up front:
It's pre-set: The dose (7.2 mg / 0.75 mL) is already loaded. You don't dial anything.
The needle stays hidden: It sits inside a yellow cover that only retracts when the pen is pressed firmly against your skin.
It's single use: One pen, one injection, one week. Once it's been used, it locks.
Set yourself up somewhere clean and well-lit. Give yourself a few minutes. You'll need:
Your Wegovy 7.2mg pen
An alcohol swab (or soap and warm water)
A piece of clean gauze or a tissue
Your sharps bin, lid open, within reach
Wash your hands thoroughly. Then take a quick look at the pen before you go any further. Don't use it if:
The pen looks damaged, or like it's been used
The medicine isn't clear and colourless when you look through the window
The expiration date has passed
Small air bubbles inside the medicine are normal and don't affect your dose. But if anything else looks wrong, pause and message your clinical team in the Numan app before injecting.
It's also fine (and arguably easier on the skin) to take the pen out of the fridge a few minutes before you inject, so it's not ice-cold against your skin. Just don't leave it sitting in direct sunlight or on a warm surface.
There are three sites approved for self-injection with Wegovy 7.2mg:
The front of your upper thigh: A reliable and common choice.
The lower stomach: At least 2 inches (about 5 cm) away from your belly button.
The upper arm: If someone else is injecting for you.
Avoid skin that's tender, bruised, red, hard, scarred, or covered in stretch marks. You can use the same body area each week, but try to pick a slightly different spot within it, so you're not repeatedly injecting into the same patch of skin.
Wipe the spot with the alcohol swab, then let it dry fully before injecting. Wet skin can sting, and you don't want any residual alcohol on the surface when the needle goes in.
Pull the pen cap straight off in one motion. Don't twist, the needle will still be hidden inside the yellow cover at the tip and only retracts when the pen senses real pressure against your skin.
Place the pen against your chosen site and press it firmly into your skin. Make sure to keep pressing for at least 5-10 seconds.
You'll hear two distinct clicks:
Click 1: The injection has started
Click 2: The pen is working and the dose is still being administered
While this is happening, you'll see a yellow bar moving down the side of the pen. When it stops moving, the dose is complete. Don't lift before the bar stops.
Lift the pen slowly, straight up, not dragging it sideways across your skin. Have a quick look at the site. A drop of blood is normal, and to deal with it, you can press lightly with your gauze or tissue.
Then drop the used pen straight into your sharps bin. Don't try to recap it, reuse it, or put it in the household bin. Once the needle cover has been pressed in, the pen automatically locks. This is because it's a single-use device by design.
A successful injection should feel mostly uneventful:
Two distinct clicks
A yellow bar that visibly moves and then stops
Steady pressure under your hand, but no sharp pain
A barely noticeable mark at the site afterwards
A small drop of medicine on the skin afterwards is occasionally normal. But a noticeable squirt, or medicine pooling on your skin, is a sign that you may not have got the full dose. If that happens, don't inject again. Instead, message your clinical team and let us know what you saw.
For a few hours after your injection, you might notice:
Mild redness or a small bump at the site (normally fades within a day or two)
A reduction in appetite or a feeling of early fullness
Mild nausea or gut changes which are particularly common when you've just stepped up to a new dose
These usually ease as your body adjusts.
When to seek urgent help: Stop your medication and call 111 or go to A&E if you experience:
Ongoing severe abdominal pain
Persistent vomiting
Fever
Jaundice (yellowing of the skin)
Signs of an allergic reaction (swelling of the face, lips or throat; difficulty breathing)
Tap "Get help" in the app if:
Something didn't feel right during your injection
You're not sure you got the full dose
You've missed a dose and aren't sure what to do
A side effect isn't settling, or is getting worse
Anything else is on your mind
We'd always rather hear from you than not. The team is here from your first injection to your last, and the more we hear from you, the better we can support you.
The 7.2mg pen is designed to need a firm, confident press against your skin. The yellow bar won't start moving until it senses proper contact. If it doesn't seem to be working, check that the pen is held flat against your skin and that you're pressing down steadily. If you're still not sure it's delivering properly, pause and message us before trying again. And if your first injection feels like a lot, that's normal - the whole process should feel more familiar after a few doses.
Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm)
