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Weight loss injections/treatments

Discuss weight-loss injections and treatments, including personal experiences. Mumsnet hasn't checked the qualifications of anyone posting here. You may wish to speak to a medical professional before starting any treatments.

Can I get 12.5mg from a 10mg pen?

5 replies

PrayMoreWorryLess · 22/06/2025 18:13

Hello all,

Just a quick question, I've just started my second 10mg pen, which was probably a mistake as I noticed the 10mg wasn't as effective in the last week of my last pen.

I'm assuming I can do usual dose (60 clicks) and a further 15 clicks to make up the extra 2 5mg needed?

I took my 10mg dose yesterday, but not feeling the effect like I usually do today, so wanted to do another 15 clicks today.

I have plenty of needle heads and also syringes so can extract it.

But it is 15 clicks that would make up the extra 2.5mg? I just wanted clarification before I went ahead.
Thank you!

OP posts:
MagnoliaTreePetals · 22/06/2025 18:24

Yes, your calculations are correct, 15 clicks from a 10mg pen will give you 2.5mg.
I find this chart very helpful
https://monj.co.uk/monj-mounjaro-click-chart/
Some people will remind you that you are meant to leave a certain number of days between injections.
But I have done the same as you, injected one day, realised I should have gone up a dose, topped up the next day and then left it a week before the next full dose.

Click Chart Mounjaro Kwikpen UK | Mounjaro Price Comparison by Monj

Click Chart for Mounjaro KwikPen - UK Click List for the Kwik Pen dose information for full information on pens please speak to your provider

https://monj.co.uk/monj-mounjaro-click-chart/

PrayMoreWorryLess · 22/06/2025 18:26

MagnoliaTreePetals · 22/06/2025 18:24

Yes, your calculations are correct, 15 clicks from a 10mg pen will give you 2.5mg.
I find this chart very helpful
https://monj.co.uk/monj-mounjaro-click-chart/
Some people will remind you that you are meant to leave a certain number of days between injections.
But I have done the same as you, injected one day, realised I should have gone up a dose, topped up the next day and then left it a week before the next full dose.

Thank you so much for this! I really appreciate it 😍

OP posts:
Histoscientist · 22/06/2025 18:27

It does take around 2-3 days to kick in fully for me usually so I wouldn't advise topping up next day. I've done it on day 4 before when a dose wore off or you can also take it more often, my prescriber suggested every 5 days when my 10mg wore off and this kick started my suppression again until I started 12.5mg.

WeAllHaveWings · 22/06/2025 18:28

Yes, 75 clicks in total (over two injections, I would probably do something like 45 + 30) or 0.75ml in a syringe/one injection.

Once you use a syringe once on the pen you will need to use syringes for the rest of the pen.

Alternatively which I have heard my provider recommending to patients (because providers will not condone adjusted doses) to do temporarily just until the end of a pen, and might be easier, is to inject every 5-6 days instead. This will increase the overall concentration in your body.

PrayMoreWorryLess · 22/06/2025 22:10

Yes I going to see how tomorrow goes, might go with the 10mg every 5 days if I feel it's not being as effective. I had this issue at 5mg, and regretted staying on the same dose for 2 months, you'd think I'd have learned my lesson 🙄

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