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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.

2.5mg pens are overpriced?

27 replies

Eliota · 26/07/2026 17:00

Why does anyone buy the 2.5mg pens...they're nearly 2x the price per injection as buying a 5mg pen and spacing the doses. I'm new to Mounjaro ( in first month but have just had this realisation when looking to buy 5mg!) I've had good suppression on 2.5mg so may stay on this but if I buy a 5mg pen it will last 8 weeks for only £10 more than a 2.5mg pen?! Does everyone do this?

OP posts:
gemma76wh · 27/07/2026 08:05

Pharmacies don’t support click counting, but I believe it’s ok to say you’re extending time between doses, ie injecting every 10 days instead of 7. My pharmacy has never asked me, but from what I’ve read online that doesn’t make them jumpy like microdosing does.

ThisPeachFawn · 27/07/2026 08:24

That's good to know @gemma76wh thank you!

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