Ozempic vs Wegovy: same molecule, different answer
Ozempic and Wegovy contain exactly the same active ingredient: semaglutide. Ozempic is licensed for type 2 diabetes and reaches 1 mg. Wegovy is licensed for weight management and reaches 2.4 mg. Only Ozempic reaches State reimbursement, and only when prescribed for diabetes. If weight loss is your goal, Wegovy is the one to ask about.
The short version
- Identical molecule. Semaglutide in both
- Wegovy reaches 2.4 mg, Ozempic stops at 1 mg
- Wegovy is licensed for weight management, Ozempic is not
- Ozempic reaches the €80 cap for diabetes; Wegovy never does
- Ask for Wegovy if weight loss is the goal
What Ozempic and Wegovy have in common
Both are semaglutide, a GLP-1 receptor agonist made by the same manufacturer. Same molecule, same mechanism, same weekly subcutaneous injection, and broadly the same side effect profile.
If you have read that one “works better” than the other, what is actually being described is the dose, not the drug.
The Ozempic and Wegovy dose difference, and why it matters
| Ozempic | Wegovy | |
|---|---|---|
| Starting dose | 0.25 mg | 0.25 mg |
| Maximum dose | 1 mg | 2.4 mg |
| Titration length | 8 weeks | 16 weeks |
| Price | from €260 | €279.95 |
Wegovy reaches more than double Ozempic’s maximum. That 2.4 mg dose is what was used in the STEP weight management trials, which is why Wegovy carries the weight management licence and Ozempic does not.
Prescribing information for both is published by the European Medicines Agency: Ozempic and Wegovy.
The Ozempic and Wegovy licence difference decides what you pay
This is where the same molecule produces opposite answers.
| Prescribed for diabetes | Prescribed for weight loss | |
|---|---|---|
| Ozempic | €80 monthly cap | Full price |
| Wegovy | Not applicable | Full price |
Irish reimbursement follows the indication written on the prescription, not the medicine in the box. Weight management is not a reimbursed indication here, so Wegovy can never reach the cap. Ozempic can, but only for diabetes.
The difference is between €80 a month and €260 to €337 a pen. The Drugs Payment Scheme explained →
Why an Irish GP may refuse Ozempic for weight loss
Prescribing Ozempic purely for weight loss is off-label. Many Irish GPs decline it on that basis alone.
There is a second reason. Semaglutide supply has been tight across Europe, and Irish pharmacies have at times prioritised patients with type 2 diabetes when stock was short. That is the clinically correct call, and it makes prescribers reluctant to add off-label demand to a constrained supply.
Asking for Wegovy sidesteps both objections. It carries the appropriate licence and does not compete with diabetes supply. How to get a prescription →
Should you ask for Ozempic or Wegovy?
If you have type 2 diabetes: Ozempic, and register for the Drugs Payment Scheme or check the Long Term Illness Scheme, which covers diabetes medicines with no charge at all.
If weight management is the goal: Wegovy. Right licence, higher dose, easier prescribing conversation. You will pay full price either way, so there is no cost argument for pressing for Ozempic.
Read next: Mounjaro vs Wegovy, if you are weighing the more expensive option.
Ozempic in Ireland: cost and access
Why the diabetes licence changes what you pay.
GuideWegovy in Ireland: cost and access
Semaglutide licensed for weight management, and what it costs.
GuideWhere to buy Ozempic in Ireland
What the law allows, and how we help you find the price.
Let us find your price and your prescriber
Tell us your county. We will come back with the best price near you and an Irish specialist who can assess whether it suits you.
- The best price available near you, pharmacy by pharmacy
- An Irish specialist who can assess you and prescribe if suitable
- Whether your case is likely to qualify for State reimbursement
Which one your Irish prescriber is likely to write
For weight management, most Irish prescribers will write Wegovy rather than Ozempic, because Wegovy is the licensed product for that indication and prescribing off-label when a licensed option exists is hard to justify.
Private weight management clinics, concentrated in Dublin, Cork, Galway, Limerick and Waterford, are generally more comfortable with weight management prescribing than a busy general practice in a smaller county. If your GP declines, a registered Irish clinic consulting remotely and an Irish pharmacy dispensing is a lawful route, wherever you live.
Ozempic vs Wegovy: common questions
Yes, both contain semaglutide. They differ in maximum dose and licensed indication. Wegovy reaches 2.4 mg and is licensed for weight management. Ozempic reaches 1 mg and is licensed for type 2 diabetes.
Wegovy, on both dose and licence. It reaches 2.4 mg, the dose used in the weight management trials, and carries the licence for that use. Ozempic stops at 1 mg and prescribing it for weight loss is off-label.
Because cover follows the indication rather than the molecule. Ozempic is reimbursed for type 2 diabetes. Weight management is not a reimbursed indication in Ireland, so Wegovy never reaches the €80 cap.
That is a decision for your prescriber. It is done in practice, and because both contain semaglutide the switch is generally more straightforward than moving between different molecules.