Wegovy pill UK: how to take it, the doses, and when it starts to work

If the needle is what's kept you away from GLP-1 medicines, the Wegovy pill is the first real alternative licensed in the UK for weight loss. It's the same medicine as the Wegovy injection, semaglutide, as a tablet you take once a day. The tablet isn't the hard part. The routine around it is, and it takes some getting used to.

Everything below comes from the UK label (the Summary of Product Characteristics, or SmPC) and the main trial behind it, OASIS 4. Where the two give slightly different numbers, we say which one we're quoting.

What the Wegovy pill is

The Wegovy pill is oral semaglutide, made by Novo Nordisk. Its official name is Wegovy tablets, so if you've seen both names, they mean the same thing. Semaglutide is a GLP-1 medicine. It copies a hormone your gut releases after you eat, which tells your brain you've had enough and slows how fast your stomach empties. That's why it helps people feel full sooner and think about food less.

The MHRA licensed the tablets on 11 June 2026, the first GLP-1 tablet licensed for weight loss in the UK (MHRA). The licence covers adults with a BMI of 30 or more, or a BMI of 27 to 30 with at least one weight-related health problem, alongside a reduced-calorie diet and more physical activity (UK SmPC, section 4.1).

Is it the same as Rybelsus?

No, though they're close relatives. Rybelsus is also a semaglutide tablet, but it's licensed for type 2 diabetes, not weight loss, and it goes no higher than 9 mg. In the UK it now comes as 1.5, 4 and 9 mg tablets, after the older 3, 7 and 14 mg versions were discontinued (Rybelsus SmPC). The Wegovy pill goes up to 25 mg and is licensed for weight management. Same molecule, different top dose, different licence.

How to take the Wegovy pill

Semaglutide is a peptide, a small protein, and your stomach is built to break those down. The tablet carries an ingredient that helps some of it through the stomach wall, but only about 1 to 2% of each dose reaches your blood (UK SmPC, section 5.2). Food, drink and other tablets in your stomach cut that further. That's why the rules are strict, and why they're worth sticking to.

The things that trip people up

• Tea and coffee count as drinks, so they wait the 30 minutes too. So does juice.
• More water isn't better. Large amounts of water reduce how much medicine is absorbed, which is why the label caps it at 120 ml.
• Your other morning tablets wait as well. In a study where the pill was taken alongside five other tablets, the amount of semaglutide absorbed fell by about a third (UK SmPC, section 4.5).
• If you take levothyroxine or warfarin, tell your prescriber. Semaglutide tablets raised thyroxine levels by about a third in a study, so the label suggests checking your thyroid levels, and people on warfarin may need their INR checked more often (UK SmPC, section 4.5).
• Your contraceptive pill isn't affected, according to the label, but you should use contraception while you take the Wegovy pill. Don't take it if you're pregnant: if you become pregnant, stop and tell your prescriber. Stop it at least 2 months before trying for a baby, and don't take it while breastfeeding (UK SmPC, sections 4.5 and 4.6).

If you miss a dose

Skip it. Take your next tablet the following day as normal, and don't take two to make up for it (UK SmPC, section 4.2).

Wegovy pill doses: 1.5, 4, 9 and 25 mg

There are four tablet strengths. You start low and step up, so your stomach has time to get used to the medicine, and each step lasts at least a month (UK SmPC, section 4.2):

Two rules worth knowing:

• If a step is hard going, talk to your prescriber. The label says that, if needed, "the dose can be maintained at the previous dose level".
• Never take two lower-strength tablets to make a bigger dose. The label is clear: one tablet a day.

The numbers look big next to the injection, 25 mg against 2.4 mg, because so little of a tablet is absorbed. You can't compare milligrams across the two, and there's no mg-for-mg swap. We explain why in our guide to oral and injected doses.

How long does the Wegovy pill take to work?

The scale moves gradually, for two reasons. You spend the first three months on the lower starter doses, and semaglutide takes 4 to 5 weeks after each change to build up to a steady level in your body (UK SmPC, section 5.2).

The label puts it simply: "Weight loss occurred early and continued throughout the trial." Here's roughly what the average looked like in OASIS 4, the main trial (Novo Nordisk, OASIS 4 results):

Averages hide a lot. Some people lose weight quickly. Others lose very little for a couple of months and more later. If you're a few months in and wondering whether it's working, talk to your prescriber. The UK label for the tablets doesn't set a cut-off for stopping.

Does the Wegovy pill work?

In OASIS 4, 307 adults with obesity or overweight (and without diabetes) took the 25 mg pill or a placebo for 64 weeks, alongside advice on diet and activity. On average, people on the pill lost 13.6% of their body weight, against 2.2% on placebo (OASIS 4, NEJM 2025). In kilos, the UK label gives an average of 14.2 kg lost on the pill and 2.2 kg on placebo.

That 13.6% counts everyone who started, including people who stopped the pill early. If everyone had stayed on treatment, the label estimates the average would have been 16.6%, against 2.8% on placebo (UK SmPC, section 5.1). And for people who started the trial with prediabetes, 71.1% had normal blood sugar levels by the end, against 33.3% on placebo.

Put plainly: about three in four people on the pill lost at least 5% of their weight, and more than one in four lost at least 20%. On placebo, about three in ten lost 5%, and three in a hundred lost 20%.

For context, the weekly Wegovy injection averaged 14.9% in its main trial (STEP 1), and Mounjaro averaged 20.9% at its top dose (SURMOUNT-1). These are separate trials with different people, so treat that as a rough guide rather than a scoreboard.

Wegovy pill side effects

Most side effects are in the stomach and gut, and they're most likely in the first months and after each dose increase. The UK label quotes these rates from OASIS 4:

The label lists these as very common, affecting more than 1 in 10 people: feeling sick, being sick, diarrhoea, constipation, indigestion, stomach pain, headache and tiredness. These are common, affecting up to 1 in 10: dizziness, a change in taste, odd skin sensations such as tingling, burping, wind, bloating, reflux, gastritis, gallstones and hair loss (UK SmPC, section 4.8).

Most were mild or moderate. Stomach and gut side effects led 3.4% of people on the pill to stop it for good.

Wegovy pill reviews: what people report in the trial

Search for Wegovy pill reviews and you'll find everything from "life-changing" to "sick every morning". We don't print testimonials, because one person's first month tells you very little about yours. A trial is the closest thing to hundreds of reviews written down the same way. Here's what the 205 people on the pill in OASIS 4 reported (OASIS 4, NEJM 2025):

• 74.0% had a stomach or gut side effect at some point, against 42.2% on placebo. Most were mild to moderate.
• 6.9% stopped the pill because of side effects, against 5.9% on placebo.
• 3.9% had a serious adverse event, against 8.8% on placebo.
• 81.5% were still taking the pill at the end, against 74.5% on placebo (Novo Nordisk).
• On a questionnaire about physical function (things like walking and bending), scores rose 16.2 points on the pill and 8.4 on placebo. 55.3% improved by at least 14.6 points, the change the questionnaire treats as meaningful, against 34.8% on placebo.

What a trial can't tell you is how your mornings will go. If you start the pill, your own notes will tell you more than anyone's review: when the nausea eased, which breakfasts sat well, and what changed at each dose step.

Who can get the Wegovy pill in the UK?

Who the licence covers

Adults with a BMI of 30 or more, or 27 to 30 with at least one weight-related health problem, alongside a reduced-calorie diet and more physical activity (MHRA). It's prescription-only, so a prescriber checks your weight, your medical history and what else you take before deciding.

Private prescription only

Novo Nordisk launched it through regulated private providers in July 2026, starting with the lower strengths (PharmaTimes, 6 July 2026). Buy it only on a prescription from a pharmacy registered with the General Pharmaceutical Council. Tablets sold without a prescription have no checked contents.

Can you get the Wegovy pill on the NHS?

No. NICE hasn't published guidance on the pill. On 8 October 2026 it folded its planned appraisal of oral semaglutide into a broader review of semaglutide for weight management, which will also look again at its guidance on the Wegovy injection and at a higher 7.2 mg injection dose (NICE). That review has no publication date yet (NICE, ID6699). For now, the NHS route for semaglutide is the weekly injection, through specialist weight management services, for up to two years (NICE TA875).

What it costs

We don't list prices on this page. For current UK prices, see our Wegovy pill UK price guide.

The other GLP-1 tablet

Foundayo (orforglipron) is the second GLP-1 tablet licensed in the UK, and it has no food or water rules. We compare the two in Foundayo vs the Wegovy pill, and our Foundayo UK guide covers its doses and where NICE has got to.

FAQs

This guide is general information from the UK label and the published trial, not medical advice. Your prescriber sets your doses, and some people step up more slowly than the label's minimum.