Rybelsus
A tablet form of semaglutide, a GLP-1 receptor agonist, taken once a day and authorised in the EU for type 2 diabetes.
General information, not medical advice. Docalo does not sell medicines, and prescription-only medicines are prescribed only after an individual medical assessment.
What Rybelsus is and how it works
Rybelsus contains semaglutide, a copy of the gut hormone GLP-1, in a tablet built to be absorbed through the stomach wall. It helps the body release insulin after meals and lowers blood sugar.
Its EU authorisation covers type 2 diabetes only. Food, drink and other tablets in the stomach reduce how much is absorbed, which is why the instructions on how to take it are strict.
Who it may suit, according to the label
- Adults with type 2 diabetes that is not sufficiently controlled, alongside diet and exercise.
- On its own when metformin is not suitable, or added to other diabetes medicines.
- It is not authorised for weight management or for type 1 diabetes.
Only a doctor who knows your history can decide whether a medicine suits you.
How to use Rybelsus
On an empty stomach. Swallow the tablet whole with a sip of water, up to half a glass (120 ml), on an empty stomach.
Wait 30 minutes. Wait at least 30 minutes before eating, drinking or taking other tablets. Waiting less reduces how much semaglutide is absorbed.
Built up in steps. The EU product information covers two tablet series whose strengths are not interchangeable mg for mg. The newer series starts at 1.5 mg once a day for one month, then 4 mg; the original series starts at 3 mg, then 7 mg. After at least one month on a dose, the prescriber may step up to 9 mg (14 mg in the original series), then 25 mg and 50 mg. 50 mg once a day, as a single tablet, is the maximum.
Common side effects
Get urgent medical help if (whatever the frequency): Severe, persistent stomach pain, often spreading to the back, Swelling of the face, lips, tongue or throat, or trouble breathing
Very common (may affect more than 1 in 10 people): nausea, diarrhoea, low blood sugar when used with insulin or a sulfonylurea
Common (may affect up to 1 in 10 people): vomiting, stomach pain, constipation, indigestion, reduced appetite, tiredness, low blood sugar when used with other diabetes tablets, headache, dizziness, altered skin sensation such as tingling or burning, reported mainly at 25 mg and 50 mg
Safety
Do not use Rybelsus if
- You have ever had an allergic reaction to semaglutide or any ingredient in the tablet
- You have type 1 diabetes or diabetic ketoacidosis, because semaglutide is not a substitute for insulin
- You are pregnant, planning a pregnancy within the next two months, or breastfeeding
People with diabetic eye disease need closer eye checks when blood sugar falls quickly. Always read the patient leaflet supplied with the tablets.
Your questions answered
Is Rybelsus the same as Ozempic?
Why does Rybelsus have to be taken on an empty stomach?
More questions
Is Rybelsus authorised for weight loss?
References
This page summarises the official product information and the published sources below.
- Rybelsus (semaglutide): European public assessment report European Medicines Agency, 2020
- Rybelsus: Annex I Summary of Product Characteristics European Medicines Agency, 2026
- Oral semaglutide versus subcutaneous liraglutide and placebo in type 2 diabetes (PIONEER 4). Lancet 2019;394:39-50 The Lancet, 2019
- Novo Nordisk: European Commission approval of oral semaglutide 25 mg for weight management (Wegovy), July 2026 Novo Nordisk A/S, 2026
Other medicines used in weight management
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