Wegovy pill doses and Wegovy pill dosing chart: a UK guide
- How tablet doses differ from injection doses
- The authorised dose sequence, from 1.5 mg to 25 mg
- Why doses increase gradually
- What to do if you miss a dose
- How switching from the injection works
- When to contact your prescriber
How are Wegovy tablet doses different from injection doses?
Wegovy tablets and Wegovy injections both contain semaglutide, but their milligram strengths are not interchangeable. The tablet is taken daily and the injection weekly, and semaglutide is absorbed very differently through the stomach than from under the skin. According to the SmPC, oral semaglutide shows higher variability in absorption than the injection, so the effect of moving between the two cannot easily be predicted from the numbers alone.
The same applies to Rybelsus, a semaglutide tablet licensed for type 2 diabetes. Some Rybelsus strengths carry the same numbers as Wegovy tablets, but they are separate medicines with different licensed uses, and one is not a substitute for the other.
Good to know
Seeing semaglutide on two different packs does not mean the doses match. The product name and strength on your prescription are what confirm which medicine you are taking.
Wegovy pill dosing chart
The UK SmPC sets out four dose levels, each taken once daily, with a minimum of 1 month at each level before the dose is increased.
This chart is general information about the authorised schedule. It is not a personal treatment plan. Your prescriber decides your dose.
| Dose level | Daily dose | Minimum time at this dose |
|---|---|---|
| Starting dose | 1.5 mg once daily | 1 month |
| Step 2 | 4 mg once daily | 1 month |
| Step 3 | 9 mg once daily | 1 month |
| Maintenance dose | 25 mg once daily | Ongoing |
25 mg is the maintenance dose and the maximum recommended single daily dose. The SmPC also states that, if needed, the dose can be maintained at the previous level, so your prescriber may keep you on a lower step for longer rather than increasing it on schedule.
Why do Wegovy pill doses rise gradually?
Semaglutide is a GLP-1 receptor agonist. It acts on appetite-regulating receptors in the brain and slows gastric emptying. Starting at a low dose and increasing in monthly steps gives the digestive system time to adjust, which helps limit gastrointestinal side effects such as nausea, vomiting, diarrhoea and constipation.
Your prescriber reviews how well you are tolerating each dose before deciding whether, and when, to increase it. A higher dose does not guarantee better or faster results, and the right pace varies from person to person.
Important:
- Do not increase your dose faster than your prescriber advises
- Do not take more than one tablet a day to make up a higher dose.
- The PIL states that two tablets should not be taken to get the effect of a higher dose
- Do not combine tablets of different strengths
Taking more than prescribed can increase the risk of side effects, including vomiting and diarrhoea, which can lead to dehydration. The SmPC notes that dehydration may, in rare cases, lead to a deterioration in kidney function.
What if you miss a dose?
If you miss a dose, the SmPC and PIL advise skipping the missed dose and taking your usual dose the following day. Do not take two tablets to make up for it.
Tip:
Wegovy tablets have strict timing rules. The tablet is taken on an empty stomach after fasting for at least 8 hours, swallowed whole with a sip of water (up to 120 mL). You then need to wait at least 30 minutes before eating, drinking or taking other oral medicines. Taking it at the same time each morning can make these rules easier to follow.
Can you switch from Wegovy injections to tablets?
The SmPC includes one authorised switching pathway: from Wegovy 2.4 mg once-weekly injections to Wegovy 25 mg once-daily tablets. Where a switch is appropriate, tablets can be started one week after the last injection.
Whether and when to switch is a decision for your prescriber. There is no authorised equivalence between other injection and tablet strengths, or between Wegovy tablets and other GLP-1 medicines, so any change should be discussed with your prescriber first rather than made independently.
When should you contact your prescriber?
Contact your UK-registered prescriber if you:
- Have side effects that persist or do not settle
- Notice signs of dehydration, such as passing less urine, dizziness or being unable to keep fluids down
- Find the fasting and timing rules difficult to follow
- Have missed several doses
- Are starting or already taking other medicines, particularly oral medicines such as levothyroxine or warfarin, which the PIL highlights
- Develop a new medical condition or notice a change in an existing one
Important!
Contact NHS 111 or seek urgent care for severe symptoms such as intense abdominal pain or severe dehydration.
Final thoughts
Wegovy pill doses follow a set sequence of 1.5 mg, 4 mg, 9 mg and 25 mg, with at least 1 month at each step and 25 mg as the maximum recommended daily dose. Doses rise gradually to support tolerability, and the pace is a clinical decision rather than a target to reach quickly. Tablet strengths are not interchangeable with injection or Rybelsus strengths, and any change to your dose, or a switch between forms, should come from your prescriber.
DoktorABC connects UK patients with UK-registered prescribers who can review your treatment and provide ongoing clinical guidance.
FAQ
What is the starting dose of the Wegovy pill?
1.5 mg once daily, for at least 1 month, according to the UK SmPC.
What is the highest Wegovy pill dose?
25 mg once daily. This is both the maintenance dose and the maximum recommended single daily dose.
Can I stay on a lower dose?
Your prescriber may keep you at the previous dose level if needed, as the SmPC allows. This decision is based on how you are responding to and tolerating treatment.
Is 25 mg of the tablet the same as 2.4 mg of the injection?
No. The SmPC authorises switching from 2.4 mg weekly injections to 25 mg daily tablets, but the milligram amounts are not equivalent, and the switch is a decision for your prescriber.
Can I take two 9 mg tablets instead of one 25 mg tablet?
No. The PIL states that two tablets should not be taken to get the effect of a higher dose.
What happens if I take my tablet with food?
Eating or drinking too soon after taking the tablet reduces how much semaglutide is absorbed, according to the MHRA. If this happens regularly, speak to your prescriber.
The DoktorABC medical advisory board
Dr. Roland Ruiken
Medical advisor, Norway
Dr. Viktor Simunovic
Medical advisor, Croatia