Our guide has everything you need to know about switching from injections to tablets, including how the pills work, what dose you’ll start on, and how to decide which treatment is best for you.
Three key takeaways
Wegovy pills work in the same way as Wegovy injections as they contain the same active ingredient, semaglutide. The main difference is how you take them.
Switching treatments should always be done with your prescriber's guidance. Whether you're on Wegovy or Mounjaro injections, a healthcare professional needs to help you make the transition safely.
Wegovy pills are MHRA-approved and show results comparable to injections.
Wegovy pills and Wegovy injections work in broadly the same way because both contain semaglutide, a GLP-1 receptor agonist that mimics a hormone your body naturally produces.
Semaglutide acts on receptors in the brain to:
increase feelings of fullness
reduce appetite
slow down how quickly food leaves the stomach
Together, these effects may help you:
feel satisfied sooner
reduce cravings
eat less
“The main difference is how the medication is delivered. Wegovy injections are given under the skin once a week, while Wegovy pills are taken daily and absorbed through the stomach with the help of a carrier molecule that acts like a bodyguard, protecting the semaglutide long enough to reach your bloodstream.
“Because oral semaglutide is absorbed less efficiently, the pills must be taken on an empty stomach with a small amount of plain water, and you need to wait at least 30 minutes before eating or drinking anything else.”
It's important to note that you should never switch from one weight loss medication to another without speaking to your prescriber first.
The right approach will depend on which injection you're currently taking, what dose you're on, and how your body has been responding to treatment.
Here's a general overview of what the process might look like.
Safely switching from Wegovy
Because Wegovy pills and Wegovy injections contain the same active ingredient, switching between them is more straightforward than moving between different drugs.
In most cases, you'd take your last injection as normal, wait seven days, and then begin taking the pill daily. Allowing yourself that gap means you're not doubling up on doses.
Here's how the doses match up:
Wegovy injection dose
Wegovy pills dose
0.25mg
4mg
0.5mg
4mg
1mg
4mg or 9mg if you had no side effects on the 1mg injection
1.7mg
9mg
2.4mg
25mg
If you're on Wegovy 7.2mg, it's possible to switch to the 25mg pill. While 25mg isn't as effective as 7.2mg, it's on average slightly more effective than 2.4mg, and may be your preferred treatment if you feel a daily tablet is a better maintenance dose for you than a weekly injection.
“In the first one to three months after switching, it's normal for your appetite control to feel a little less consistent than it did on the injection.
“This is because the jab delivers a steady level of medication throughout the week, while the pill's absorption can vary slightly from day-to-day.
“You might notice you feel hungrier later in the day, or that your hunger levels shift from one day to the next. This usually settles down as your dose increases and your body adjusts.”
Mounjaro contains tirzepatide, which is a different active ingredient to semaglutide. However, it's still possible to switch between the two.
It’s likely that you’ll take your last Mounjaro injection, wait seven days, and then start the Wegovy pill. Your prescriber will decide your starting dose based on your current Mounjaro dose and the side effects you've experienced. Below is what your new dose could look like:
Mounjaro injection dose
Wegovy pills dose
2.5mg
4mg
5mg
4mg
7.5mg
9mg
10mg
9mg
12.5mg
9mg
15mg
25mg
There may be a transition period where your appetite feels different or weight loss slows temporarily. That's a normal part of changing medication, not a sign that the new treatment isn't working.
As always, don't stop Mounjaro or start Wegovy pills without speaking to your prescriber first.
Are Wegovy pills as effective as weight loss injections?
In comparison, Wegovy produced an average weight loss of 21% during the STEP UP trial, while Mounjaro saw an average of 22.5% over 72 weeks.
Whether you’re on pills or taking injections, your individual weight loss may be higher or lower than these figures.
It all depends on how you respond to the treatment, how consistent you are when taking your medication, and the other healthy habits you build as part of your journey.
Why would you switch from weight loss injections to Wegovy tablets?
There are plenty of good reasons why someone might want to move from injections to a daily pill. Here are some of the most common ones.
It's more convenient to store
You need to store injections in the fridge, and once you've used them, you need to dispose of the needles safely using a sharps bin.
Wegovy pills, on the other hand, don't need refrigeration. You just keep them at room temperature in their original bottle. That's a lot simpler if you travel regularly, don't have easy access to a fridge at work, or find the storage side of things a bit of a hassle.
It's easier to administer
For some people, self-injecting isn’t appealing. Whether it's needle anxiety or a medical condition that makes injecting harder, the prospect of a weekly jab can be a barrier. A once-daily pill may be more suitable.
You're in a maintenance phase
If you've already lost a significant amount of weight with injections and you're looking for a longer-term option that fits more naturally into your daily routine, switching to a pill might feel like a more sustainable approach for weight loss maintenance.
However, this should always be discussed with your prescriber to see if it’s a suitable option for you.
You simply prefer pills
Some people just prefer taking a pill to using an injection. That's a completely valid reason to consider switching, and your preferences matter when it comes to sticking with a treatment long-term.
How to decide if the Wegovy pill is right for you
If you're weighing up whether to switch, it helps to be honest with yourself about what's working and what isn't. The pill isn't the right fit for everyone, so think through the following before committing.
Is your current injection treatment working? If you're losing weight steadily and tolerating your injections well, switching might not offer a clear advantage. The injection has a stronger average weight loss result in clinical trials, so if it's working for you, there's no pressure to change.
Is the injection causing you problems? If needle anxiety, storage, or the practicalities of injecting are making it hard to stay consistent, pills could be a better fit. Consistency matters more than the method.
Do you have a reliable morning routine? The pill only works if you take it the same way every single day. If your wake-up times vary a lot, because of shift work or young children, for example, keeping to the strict fasting requirement may be difficult.
Can you take the pill on an empty stomach? If you experience nausea, acid reflux, or stomach discomfort when taking medication without food, the Wegovy pill might not suit you.
Do you take other medications in the morning? The pill needs to be taken at least 30 minutes before any other medication. If you have morning medications that can't easily be pushed back, that could be worth discussing with your prescriber.
Have you spoken to your clinician? This is the most important one. Your prescriber knows your medical history, your progress, and which option is safest for you. Always make this decision with them, not without them.
Frequently asked questions about switching from weight loss injections to tablets
Are side effects worse on Wegovy pills?
Not necessarily. Because Wegovy pills and Wegovy injections contain the same active ingredient, the side effects were similar during clinical trials.
The most common Wegovy side effects include nausea, diarrhoea, vomiting, constipation, and stomach pain, and these tend to be more noticeable when you first start treatment or increase your dose.
The one difference is that the injections can sometimes cause mild irritation at the injection site, which obviously won't happen with a pill.
If you're switching from Mounjaro, the side effect profile may feel slightly different as your body adjusts to a new active ingredient, but your clinician will be able to prepare you for what to expect.
Are Wegovy pills cheaper than weight loss injections?
Wegovy pills start from £99, which, at the time of writing, is the same price as the starting dose of the Wegovy injection.
How often do you take Wegovy pills?
Wegovy pills are taken once a day, every morning. They need to be swallowed whole (don't crush, chew, or split them) with no more than 100ml of plain water, on a completely empty stomach.
You then need to wait at least 30 minutes before having food, other drinks, or other medications. Even small changes in how or when you take the pill can affect how well it works.
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