A mass rollout of weight loss injections begins across the NHS on Monday, with GPs able to prescribe Mounjaro for the first time. The drug, also known as tirzepatide and manufactured by Lilly, is an antidiabetic medication that works by lowering blood sugar levels and slowing down the digestion of food.

Around 220,000 people with "greatest need" are expected to receive Mounjaro, also known as tirzepatide and made by Lilly through the NHS over the next three years

“The medication comes with a patient information leaflet listing common side effects, including feeling sick, indigestion, constipation, and diarrhoea. There can be some more serious side effects, such as low blood sugar, gallstones and inflammation of the pancreas (pancreatitis).