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 93 UK pharmacies is £306.70. Trim charges £325.00, which is 6% above the market average.

Frequently asked questions

How much does Mounjaro 15mg cost at Trim?

Mounjaro 15mg at Trim costs £325.00 per 4-week supply as of April 2026.

Is Trim the cheapest for Mounjaro 15mg?

Trim is ranked #74 out of 93 pharmacies for Mounjaro 15mg. The cheapest is £209.99 at Pharmacy Xpress.

Does Trim include consultation and delivery for Mounjaro 15mg?

Trim does not include a consultation fee and does not include delivery in the £325.00 price.

Is Trim GPhC registered?

Yes, Trim is registered with the General Pharmaceutical Council (GPhC number: pending). You can verify this on the GPhC register.

Related comparisons

Compare all pharmacies for 15mg →Trim — all doses →Compare all Mounjaro prices →All discount codes →

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