The 15mg pen is the highest available Mounjaro dose. Clinical trials showed an average 20.9% body weight loss at this level. Not everyone needs to reach 15mg — your prescriber will determine the optimal dose for you.

The average price for Mounjaro 15mg across 69 UK pharmacies is £306.60. MSH Weight Loss charges £319.00, which is 4% above the market average.

Frequently asked questions

How much does Mounjaro 15mg cost at MSH Weight Loss?

Mounjaro 15mg at MSH Weight Loss costs £319.00 per 4-week supply as of March 2026.

Is MSH Weight Loss the cheapest for Mounjaro 15mg?

MSH Weight Loss is ranked #52 out of 69 pharmacies for Mounjaro 15mg. The cheapest is £204.99 at Pharmacy Planet.

Does MSH Weight Loss include consultation and delivery for Mounjaro 15mg?

MSH Weight Loss does not include a consultation fee and does not include delivery in the £319.00 price.

Is MSH Weight Loss GPhC registered?

Yes, MSH Weight Loss is registered with the General Pharmaceutical Council (GPhC number: 9012599). You can verify this on the GPhC register.

Related comparisons

Compare all pharmacies for 15mg →MSH Weight Loss — all doses →Compare all Mounjaro prices →All discount codes →

Prices updated March 2026. Always confirm with the pharmacy before ordering.