Using the multi-dose Mounjaro KwikPen: attach a new needle, run the flow check, set the weekly dose, inject at 90 degrees, then remove the needle.
Pre-injection checklist
- ✓The KwikPen is a multi-dose pen: it holds four weekly doses of one strength, about a month.
- ✓Check the label and expiry, and that the strength matches your prescribed dose.
- ✓Inspect the solution in the window: clear and colorless to slightly yellow, with no particles.
- ✓Let a refrigerated pen reach room temperature briefly before use, a cold dose stings more.
Step-by-step guide
- 1
Inspect the pen and wash your hands
Wash your hands with soap and water. Take the KwikPen from the fridge, check the label, strength, and expiry, and inspect the solution in the window. Unlike the single-dose pen, the KwikPen stays in use for four weeks.
Pro tipAlways check the fluid is clear and colourless before injection. - 2
Attach a new pen needle
Attach a new pen needle for every injection, as the Lilly Instructions for Use describe. Peel the paper tab, screw the needle straight onto the pen, and remove both needle caps, keeping the outer cap for disposal later.
Pro tipAlways check the fluid is clear and colourless before injection. - 3
Do the flow check on a new pen
Before the first dose from a new KwikPen, the Instructions for Use describe a flow check to clear air and confirm flow. Hold the pen with the needle up and press the dose knob until a drop appears at the needle tip.
Pro tipAlways check the fluid is clear and colourless before injection. - 4
Set the weekly dose
Set your weekly dose on the dose knob. The KwikPen delivers a fixed dose per injection; the knob turns to the full dose and stops there, as the Instructions for Use describe.
Pro tipAlways check the fluid is clear and colourless before injection. - 5
Choose a site, inject at 90 degrees, and hold
Pick the abdomen, front of the thigh, or upper arm, rotate from last week, and wipe with an alcohol pad. Place the needle straight in at 90 degrees, press the dose knob all the way, and hold until the counter shows 0, then wait a few seconds.
Pro tipAlways check the fluid is clear and colourless before injection. - 6
Remove the needle, dispose, and store the pen
Pull the needle straight out. Replace the outer cap, unscrew the used needle, and drop it straight into an approved sharps container. Put the pen cap back on and store the KwikPen for next week.
Pro tipAlways check the fluid is clear and colourless before injection.
After the injection
- Record the date and site so the next dose moves to a different area.
- Store the KwikPen capped and without a needle; the guide on storing and refrigerating Mounjaro covers the details.
Common mistakes
- Difficulty breathing, swelling of the face, throat, or tongue, or hives, signs of a serious allergic reaction, call emergency services.
- Severe, persistent abdominal pain, pancreatitis is listed in the Mounjaro Important Safety Information.
- A site that becomes progressively red, warm, or swollen over 24 to 48 hours, possible infection.
Frequently asked questions
How do I use the Mounjaro KwikPen step by step?+
Wash your hands and inspect the pen, attach a new needle, do the flow check on a new pen, set the weekly dose, inject straight into a rotated site and hold the knob until 0, then remove the needle and store the pen. See also how to inject Mounjaro.
How many doses are in a Mounjaro KwikPen?+
The KwikPen is a multi-dose pen and holds four weekly doses of one strength, about a month of supply. It stays in use across four weeks, unlike the single-dose pen.
Do I attach a new needle every time with the KwikPen?+
Yes. The Instructions for Use describe a new pen needle for each injection. The KwikPen has no fixed, hidden needle like the single-dose pen; you screw the needle on and remove it afterward.
How is the KwikPen different from the single-dose Mounjaro pen?+
The single-dose pen holds one dose with a hidden needle and is discarded whole after use. The KwikPen is a multi-dose pen with a screw-on needle, a flow check, and a dose knob. The guide on using the Mounjaro pen shows the single-dose device.
