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. Pharmacy Planet charges £128.00, which is 23% below the market average.

Frequently asked questions

How much does Mounjaro 2.5mg cost at Pharmacy Planet?

Mounjaro 2.5mg at Pharmacy Planet costs £128.00 per 4-week supply as of March 2026.

Is Pharmacy Planet the cheapest for Mounjaro 2.5mg?

Pharmacy Planet is ranked #2 out of 73 pharmacies for Mounjaro 2.5mg. The cheapest is £122.81 at Cuva Health.

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

Pharmacy Planet does not include a consultation fee and does not include delivery in the £128.00 price.

Is Pharmacy Planet GPhC registered?

Yes, Pharmacy Planet is registered with the General Pharmaceutical Council (GPhC number: 9012778). You can verify this on the GPhC register.

Related comparisons

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

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