Boots weight loss jab: How it works and is its safe as NHS approve

The NHS have rolled out an exciting new weight loss jab — Saxenda — in Boots stores nationwide. But how does the injection actually work and is it really that safe?

How does the new weight loss jab work?

In a world full of chocolate biscuits and crisps, losing weight is a tough task for most — however hope could be around the corner for those who can’t quite kick the snack cupboard yet.

High street pharmacy Boots have now announced that they will be distributing appetite suppressing injection, Saxenda, in line with NHS consultations, in a bid to slim down the nation.

The jab has been introduced as an increasing number of Brits are having to loosen the belt buckles, with recent government data showing shocking statistics that “around three quarters of people aged 45-74 in England are overweight or obese.”

Overall, it’s predicted that obesity costs the UK economy a whopping £27billion every year.

A quick-fix weight loss jab might sound appealing in this climate, but the Saxenda jab is known to have some serious side effects, and experts are quick to explain that it is not a miracle cure.

How does the Boots weight loss jab work?

The weight loss jab helps reduce body weight when used alongside a healthy diet


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The Saxenda jab works by mimicking a hormone called GLP1, which is typically released when a person feels full after a large meal.

According to the drug developers, “Saxenda works by acting on receptors in the brain that control your appetite, causing you to feel fuller and less hungry.”

Patients will be expected to inject themselves at home once a day in a fairly simple process, highlighted on the Saxenda site.

It’s been found that patients can expect to lose up to 5% of their body weight in three months, if using the drug in combination with a healthy diet.

Is the NHS weight loss injection safe to use?

How safe is the Saxena jab?



Saxenda was first approved in the UK in 2017, initially only through private prescriptions. However, that does not mean the drug is without some serious side effects.

Back in 2015, the safety of the Saxenda injection was trialled on 5,813 overweight adult patients.

The trial found that digestion reactions “were the most frequently reported adverse reactions during treatment (67.9%)”

The study also found that it was rather common for patients to suffer from sickness and vomiting whilst on the drug – with potentially more than one in 10 experiencing nausea, headaches and diarrhoea.

Trials also found the Saxenda jab could cause symptoms like indigestion, tiredness, dizziness, insomnia and low blood sugar.

Conclusions of the study said: “some severe allergic reactions (anaphylaxis) have been reported rarely in patients using Saxenda,” however “cases of inflammation of the pancreas (pancreatitis) have been reported uncommonly in patients using Saxenda.”

With this in mind, it’s essential that Saxenda should be taken in line with advice from an NHS professional.

Saxenda also advise users should not take the drug if:

  • you or any of your family have ever had MTC or if you have MEN 2
  • you are allergic to liraglutide or any of the ingredients in Saxenda
  • you are pregnant or plan to become pregnant. Saxenda may harm your unborn baby

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George Holan

George Holan is chief editor at Plainsmen Post and has articles published in many notable publications in the last decade.

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