If a Wegovy® pen is difficult to use or does not release medication as expected, follow the troubleshooting steps below to check whether the Wegovy® pen is functioning correctly.
Overview
This article explains:
Common reasons a Wegovy® pen may not work properly.
Step-by-step troubleshooting and flow check guidance.
How needle use, technique, and storage affect pen function.
When a Wegovy® pen may need replacement.
Common signs of a Wegovy® pen issue
A Wegovy® pen may require troubleshooting if:
The dose counter does not return to “0” after continuously pressing the dose button.
A drop of solution does not appear during the flow check.
Medication is leaking onto the skin or around the injection site.
Step-by-step troubleshooting for a blocked Wegovy® pen
If the dose counter does not return to “0,” the needle may be blocked or damaged. Follow these steps:
Change the needle: Attach a new, sterile needle to the pen.
Set the flow check: Turn the dose selector to the flow check symbol (—).
Perform the check: Press and hold the dose button until the counter returns to “0”.
Confirm flow: Check for a drop of solution at the needle tip.
If the Wegovy® pen still does not work
If changing the needle does not allow the pen to function properly:
The pen mechanism may be faulty.
The pen may be empty (if the grey plunger has moved all the way to the top of the window).
The pen should be discarded if the solution is not clear and colourless.
Preventing Wegovy® pen problems
Injection technique
The "6-Second Rule": Hold the pen firmly against the skin for at least 6-7 seconds after the dose indicator reaches “0” to ensure full delivery.
Priming Rules: Only perform a flow check before the first dose of a new pen. Priming at every dose will cause the pen to run out of medication before the 4th dose is reached.
Location: Try using a firmer injection site, such as the upper arm or thigh, to make inserting the needle easier.
Correct needle use
Always use a new, sterile needle for every injection.
Ensure the needle is attached correctly and pushed straight onto the pen.
Never store the pen with a needle attached, as this can lead to needle blockage, air entering the pen, or medication leakage.
Proper Wegovy® pen storage
Store unused pens in the refrigerator between 2°C and 8°C.
After first use, store the pen with the pen cap attached to protect the medicine from light.
Keep the pen away from dust, dirt, and liquids.
Key takeaway
A dose counter that won't reach “0” is usually caused by a blocked needle; changing the needle and re-attempting the dose resolves most issues. To ensure you receive all 4 doses, only prime a new pen once and always follow the 6-7 second count during injection.
If you still need help after reviewing the information above, additional assistance is available.