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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.

Missed doses

7 replies

roslyn80 · 21/01/2026 19:08

So for various reasons ive missed the last couple of doses of mounjaro, my last injection was 4th of January.
I didnt realise there was such a long gap since the last time ive had it. I've just got my new 5mg pen today and wondered if its okay to go ahead with it? Really dont want to have to reorder 2.5mg and start again so I was thinking of just dosing and doing 3.75 tonight and back to 5 next week.
Slightly wary of the side effects though so keen to hear other thoughts or know if anyone has done similar. Thanks!

OP posts:
KnewYearKnewMe · 21/01/2026 19:17

how long have you been on 5mg, and did you have 7 day gaps then?

ive been on MJ for about 16 months now.

ive found messing with amounts is the sure fire way to feel 🤢.

Nothing wrong with doing a week of 2.5mg and building up again.

MildlyAnnoyed · 21/01/2026 19:19

It’s only been about 2.5 weeks since your last dose. Providers usually say start from lowest dose if over 2 weeks gap. You’re only just over that, it will be fine.

NoTouch · 21/01/2026 19:24

If you last injected 4th January, according to the Eli Lilly instructions, you would have been ok to inject the same dose again right up to 18th January.

You are now 3 days over that so need to decide what to do.

Not sure what I would do in the same circumstances, it would really depending on previous side effects etc I guess. If I had no side effects previously I think I would probably try 3.75mg for a couple of weeks and then review, if I'd had side effects when initiating treatment I'd probably go back to 2.5mg for a 2-3 weeks.

5mg might be fine, all depends on your own previous side effects and attitude to risk.

flysolo · 21/01/2026 19:32

if you have been on MJ a while then what I would do is take 2.5mg and then another 2.5mg 4-5 days later. Then if that’s ok go back to 5mg for the next one. Plot it on a tracker graph to check your levels. It prevents a sudden spike setting off side effects after you’ve let your levels drop quite a bit. They won’t be zero though.

disclaimer I am not a medical professional and the best advice should be to ask your provider. However from a long time of reading what people her back from them it’s not always great.

flysolo · 21/01/2026 19:32

if you have been on MJ a while then what I would do is take 2.5mg and then another 2.5mg 4-5 days later. Then if that’s ok go back to 5mg for the next one. Plot it on a tracker graph to check your levels. It prevents a sudden spike setting off side effects after you’ve let your levels drop quite a bit. They won’t be zero though.

disclaimer I am not a medical professional and the best advice should be to ask your provider. However from a long time of reading what people her back from them it’s not always great.

flysolo · 21/01/2026 19:32

Deleting duplicate post from laggy mumsnet app.

roslyn80 · 22/01/2026 17:07

Thanks for your advice ladies, I took 3.75 last night and feel totally fine today thankfully, only change is that im not ravenous for the first time in a week! Will hopefully just take the 5 again next week

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