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 73 UK pharmacies is £165.58. Simple Online Pharmacy charges £173.00, which is 4% above the market average.

Simple Online Pharmacy discount codes

£40 offNew customers

£40 Off 1st Orders

FIRST40

View all discount codes →

Frequently asked questions

How much does Mounjaro 2.5mg cost at Simple Online Pharmacy?

Mounjaro 2.5mg at Simple Online Pharmacy costs £173.00 per 4-week supply as of March 2026.

Is Simple Online Pharmacy the cheapest for Mounjaro 2.5mg?

Simple Online Pharmacy is ranked #49 out of 73 pharmacies for Mounjaro 2.5mg. The cheapest is £122.81 at Cuva Health.

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

Simple Online Pharmacy does not include a consultation fee and does not include delivery in the £173.00 price.

Is Simple Online Pharmacy GPhC registered?

Yes, Simple Online Pharmacy is registered with the General Pharmaceutical Council (GPhC number: 9011287). You can verify this on the GPhC register.

Related comparisons

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

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