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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.

From Mounjaro to Wegovy and back to Mounjaro

88 replies

Lillyfinks · 03/11/2025 16:14

Hi all, I don’t know if anyone else has done the same but I thought I’d post my experience. I switched to wegovy almost 2 months ago because of the mounjaro price hike. I wish I hadn’t. I’ve had almost 2 months of food noise, insatiable hunger and chronic fatigue. I’ve struggled so bad. Yes I’ve still managed to lose weight. 2lbs in 2 months lol but at least it’s something.
i’m back on the mounjaro and already starting to feel less tired, much less hungry and not constantly thinking about food and it’s a much lower dose than I took before.
One positive I did get out of this experience is that I realised that, even with the price hike mounjaro still works out cheaper (for me) than wegovy because of the ‘5th’ dose and the fact that I spend less on food with mounjaro. I’m also finding that whereas previously on mounjaro I was in a hurry to move up a dose pretty much almost every month until I reached the 15mg, I’m only on 5mg atm and having a good response so maybe I won’t need to go as high as before.
i’m interested to know if anyone else has had the same experience.

OP posts:
Lifeisforliving2025 · 17/11/2025 20:57

My prescriber has told me to have 5 week gap between 0.5 wegovy and first dose of 2.5mg MJ but I see other companies suggest you can start a week after last Wegovy jab.

Anyone get told the same as I did?

RelishingGrpSupport · 18/11/2025 20:58

Seems different pharmacies have different views. I went to new one when I decided to go to W to save money at a time when ready to reduce dose. I'm on this thread bcs gone back to MJ and my latest onejust let me go from 1.7 W to 12.5 MJ no issue.

tempname1234 · 18/11/2025 21:38

Can I ask what you use and where you buy items to get the 5th dose? Many thanks

JMSA · 19/11/2025 00:03

tempname1234 · 18/11/2025 21:38

Can I ask what you use and where you buy items to get the 5th dose? Many thanks

I use pliers to force the pen to twist 😄
And just use the spare needle supplied by the provider.
I’m the most cackhanded person but it’s honestly easy to do.

CallMeStella · 05/01/2026 10:46

Does anyone want a £100 referral code for Numan? Just realised I need to reorder my pen 🙈

Jenelliot · 26/02/2026 16:06

Lillyfinks · 03/11/2025 16:14

Hi all, I don’t know if anyone else has done the same but I thought I’d post my experience. I switched to wegovy almost 2 months ago because of the mounjaro price hike. I wish I hadn’t. I’ve had almost 2 months of food noise, insatiable hunger and chronic fatigue. I’ve struggled so bad. Yes I’ve still managed to lose weight. 2lbs in 2 months lol but at least it’s something.
i’m back on the mounjaro and already starting to feel less tired, much less hungry and not constantly thinking about food and it’s a much lower dose than I took before.
One positive I did get out of this experience is that I realised that, even with the price hike mounjaro still works out cheaper (for me) than wegovy because of the ‘5th’ dose and the fact that I spend less on food with mounjaro. I’m also finding that whereas previously on mounjaro I was in a hurry to move up a dose pretty much almost every month until I reached the 15mg, I’m only on 5mg atm and having a good response so maybe I won’t need to go as high as before.
i’m interested to know if anyone else has had the same experience.

Hi , I have just posted my experience which sounds exactly like yours. I have not gone back to mounjaro yet I was asking for advice on the forum. Can I ask what does you were on with wegovy before moving back to mounjaro. I have moved up to 2.4g of wegovy, the first 2 days are ok although I still think of food ( unlike with mounjaro no thoughts what so ever! By day 4/5 I get the food noise and hunger. I am not sure what dose to go back to if I decide to go back with mounjaro. Hope I make sense with this !🫣

Lillyfinks · 26/02/2026 16:24

Jenelliot · 26/02/2026 16:06

Hi , I have just posted my experience which sounds exactly like yours. I have not gone back to mounjaro yet I was asking for advice on the forum. Can I ask what does you were on with wegovy before moving back to mounjaro. I have moved up to 2.4g of wegovy, the first 2 days are ok although I still think of food ( unlike with mounjaro no thoughts what so ever! By day 4/5 I get the food noise and hunger. I am not sure what dose to go back to if I decide to go back with mounjaro. Hope I make sense with this !🫣

I was on the 2.4 of wegovy too. When I went back to mounjaro they made me start at 5mg 😫 (I’m with Asda) but some people have been allowed to switch back on a higher dose, it depends who your supplier is. I’m glad to be back to mounjaro. Wegovy is useless for me. Good luck with your ongoing weight loss 🥰

OP posts:
HRTQueen · 26/02/2026 17:50

After six weeks of being on Wegovy and gaining around 12 pounds I am back to the weight is was in 2 1/2 months. I had to start at 2.5mg Mounjaro and now I am on 7.5mg, think I shall stay on this for another month or two as working really well. I am very pleased and feeling good

I think the problem that I had with Wegovy is that I started on the equivalent to what I was on for Mounjaro and it made me feel ill so I was snacking all the time. I have friends who changed to Wegovy but started on a lower dose and although they prefer Mounjaro they are fairly happy with it (and the cost).

Because of the cost I shall have to think about switching to Wegovy at some point (I have always been aware this is likely to be for life) and if I do I shall start at a low dose of Wegovy

Hoping soon another drug comes out to push the price of Mounjaro down

I still feel its the best thing I have ever done for my health

Lillyfinks · 26/02/2026 19:25

HRTQueen · 26/02/2026 17:50

After six weeks of being on Wegovy and gaining around 12 pounds I am back to the weight is was in 2 1/2 months. I had to start at 2.5mg Mounjaro and now I am on 7.5mg, think I shall stay on this for another month or two as working really well. I am very pleased and feeling good

I think the problem that I had with Wegovy is that I started on the equivalent to what I was on for Mounjaro and it made me feel ill so I was snacking all the time. I have friends who changed to Wegovy but started on a lower dose and although they prefer Mounjaro they are fairly happy with it (and the cost).

Because of the cost I shall have to think about switching to Wegovy at some point (I have always been aware this is likely to be for life) and if I do I shall start at a low dose of Wegovy

Hoping soon another drug comes out to push the price of Mounjaro down

I still feel its the best thing I have ever done for my health

Yes I’m with you on that. Although my weight loss is slow I’m 9 stone down and aiming for a couple of stone more. It’s literally saved my life. I feel better than I’ve done in years. The cost of mounjaro is steep and I’ve had to make some cutbacks but I’m hoping by the end of this year I can taper off.
good luck with your weight loss🥰

OP posts:
HRTQueen · 28/02/2026 13:23

Lillyfinks · 26/02/2026 19:25

Yes I’m with you on that. Although my weight loss is slow I’m 9 stone down and aiming for a couple of stone more. It’s literally saved my life. I feel better than I’ve done in years. The cost of mounjaro is steep and I’ve had to make some cutbacks but I’m hoping by the end of this year I can taper off.
good luck with your weight loss🥰

That’s amazing Lillyfinks

Best of luck 😊

Minniliscious · 28/02/2026 13:31

Wegovy was crap, I still had food noise and didn’t lose a pound. Switched back to Mounjaro today.

Lillyfinks · 28/02/2026 14:06

Minniliscious · 28/02/2026 13:31

Wegovy was crap, I still had food noise and didn’t lose a pound. Switched back to Mounjaro today.

Same here. What a waste of money that was. It put me off track mentally. I was expecting a similar result…but nothing! I’ll never do wegovy again.
good luck going forward 🥰

OP posts:
Minniliscious · 01/03/2026 09:13

Lillyfinks · 28/02/2026 14:06

Same here. What a waste of money that was. It put me off track mentally. I was expecting a similar result…but nothing! I’ll never do wegovy again.
good luck going forward 🥰

Thank you so much, best of luck to you also 🥰 I’m so looking forward to getting started again.

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