A pill version of the blockbuster weight-loss drug Wegovy has been approved in the UK, meaning people will soon be able to buy it with a prescription.

Manufacturer Novo Nordisk says the once-a-day tablet could be more convenient for some people than injecting themselves weekly with GLP-1 medication that blunts appetite. And, unlike the jab, the pills do not need to be kept in the fridge.

The body that would make that decision - the National Institute for Health and Care Excellence - said Novo Nordisk had not yet approached it about the issue, but that it was "in active dialogue" with the company.

Some high street and online pharmacies plan to add it to their doctor prescribing services in the coming weeks.

The MHRA says the starting dose for the tablet is 1.5mg once daily, escalating to 4mg, 9mg and 25mg with a minimum duration of one month at each dose level.

Patients currently being treated privately with a 2.4mg semaglutide injection once weekly can be transitioned straight to semaglutide 25mg tablets once daily.

The cost of Wegovy pills in the UK is not yet clear, but when they launched in the US the manufacturer listed the starting dose of 1.5mg at $149 (around £110) a month.

Similar to its injection form, the tablets contain semaglutide that works by mimicking the actions of a natural hormone called GLP-1 that suppresses appetite and slows digestion to keep you feeling fuller and less hungry.

Olivier Picard, chair of the National Pharmacy Association, called the approval of the pill "significant", adding that it could help patients who were unable or do not wish to take the injectable version.

The pill may also bring down the cost of treatment in the longer term, he said.

"Pharmacies are awaiting further guidance about when this treatment will be available for patients," he added.

Trials show they are safe and work, although - like the jab - it can take several months to get full benefits and there is the risk that weight may go back on after you stop the medication.

People on weight loss medication should also eat a healthy diet and get enough exercise.

Like any medication, there can be side effects, including nausea, diarrhoea, constipation and vomiting.

Around a third of UK adults - more than 16 million - are obese.