Overview

• Eli Lilly’s UK list price for Mounjaro was set to rise by about 170% from early September, but a supplier rebate now pegs the top‑dose wholesale price near £247.50.
• Asda, Boots and online providers published higher consumer prices, with the 15mg dose reported at about £298.97 at Asda, £299.99 at Simple Online Pharmacy from 1 September, and £335 at Boots.
• Some pharmacies brought increases forward after exhausting stock bought at the old price, and Asda customers reported cancelled orders ahead of the change.
• Roughly 1.5 million people in the UK are using weight‑loss drugs, more than half on Mounjaro, and many are shopping around as a price war develops.
• NHS supply and pricing remain on separate terms, with a tightly phased rollout for about 220,000 people over three years, while private patients consider switching to alternatives such as Wegovy.