The 2.5mg pen is the introductory dose, taken for the first 4 weeks. It helps your body adjust to tirzepatide before moving to a therapeutic dose. Most people experience mild appetite suppression at this stage.

The average price for Mounjaro 2.5mg across 92 UK pharmacies is £162.98. Pharmacy Online charges £159.99, which is 2% below the market average.

Pharmacy Online discount codes

£10 offNew customers

£10 Off 1st Orders

FIRST10

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Frequently asked questions

How much does Mounjaro 2.5mg cost at Pharmacy Online?

Mounjaro 2.5mg at Pharmacy Online costs £159.99 per 4-week supply as of May 2026.

Is Pharmacy Online the cheapest for Mounjaro 2.5mg?

Pharmacy Online is ranked #49 out of 92 pharmacies for Mounjaro 2.5mg. The cheapest is £119.95 at Assured Pharmacy.

Does Pharmacy Online include consultation and delivery for Mounjaro 2.5mg?

Pharmacy Online does not include a consultation fee and does not include delivery in the £159.99 price.

Is Pharmacy Online GPhC registered?

Yes, Pharmacy Online is registered with the General Pharmaceutical Council (GPhC number: 9011756). You can verify this on the GPhC register.

Related comparisons

Compare all pharmacies for 2.5mg →Pharmacy Online — all doses →Compare all Mounjaro prices →All discount codes →

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