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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.

Moving from Wegovy to Mounjaro

1 reply

WeightLossUsername · 15/07/2025 11:38

Hi all, I’m looking for some advice. I’m a long term mumsnetter and I’ve set up this username specifically to ask this, as I don’t want to connect it with any of my other posts.

I’ve been on Wegovy, prescribed by my regular GP since February. I was up to the 1.7 dose, as I had a couple of weeks off at one point due to other things going on so didn’t increase at that point, then stayed on 1.0 for a couple of weeks as that seemed to still be working, then moved up to 1.7. I think other people might have been on a higher dose by this point than I was. Then suddenly, my weight loss plateaued, and I didn’t feel like it was having the same effect, so my GP agreed to move me onto Mounjaro. It’s twice the cost where I am so I didn’t take the decision lightly.

My GP said that as I’d been on 1.7 of Wegovy, he didn’t see the point in me starting on 2.5 of Mounjaro and prescribed me a starting dose of 5mg.

Today was one week since my last dose of Wegovy, and I’ve just injected my first dose of Mounjaro (5mg).

I suppose I’m asking, has anyone else done the same, can I expect anything much different side effect wise from the Wegovy? My only side effects in the past were some really unpleasant nausea, a bit of diarrhoea, but not too bad.

I’ve lost about 10kgs since I started in February. My original BMI was 31.6, now down to 27.6. and I obviously want to get down to a bmi somewhere between 19 and 23.

When I was on the Wegovy, the times when I went more than a week between doses, I did really notice the effects wearing off, and when I was premenstrual, I still craved cheese and carbs. Will the same happen with Mounjaro?

Sorry for all the questions and the long post, I don’t know where to else to ask, and my GP doesn’t have a lot to say about it other than it will benefit me to be a healthy weight.

Thanks in advance if you’ve read all this, and sorry if there were already similar threads but I couldn’t find one.

OP posts:
magicpant · 15/07/2025 12:56

Sorry I posted on your other thread. Your GP is an idiot. The prescribing guidelines for these medications do not allow for this.

You need 5 weeks off W before starting MJ and you always start at 2.5mg

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