Semaglutide is the most studied weight-loss injection available in Singapore, and it is also one of the harder ones to budget for. Ask three clinics what Ozempic costs in Singapore and you will get three different monthly figures, all of them technically true and none of them the number you will actually pay across a year.
That is not because anyone is being dishonest. It is because the dose changes.
I am Dr Samantha Tay. This is what the treatment costs, how the price moves over the first four months, what sits outside the headline figure, and the question to ask any clinic before you commit.
What a year of semaglutide actually costs
Most pages quote a flat monthly price. Here is the problem with that.
The number nobody quotes: the titration ramp
Semaglutide is not started at its full dose. You begin at 0.25 mg once a week and step up roughly every four weeks until you reach the maintenance dose of 2.4 mg at around week seventeen. The escalation is deliberate. It gives your stomach time to adjust, and it is the main reason side effects stay manageable for most people.
It also means your medication cost changes as you go. Pens are dispensed by dose strength, and a lower strength costs less than a higher one. So the first four months of treatment cost less than every month after them.
This is why a quoted monthly price is almost always one of two things: a starting price, which will rise, or a maintenance price, which is higher than what you pay at the beginning. Neither is wrong. Neither is the whole answer either.
What to ask, in one sentence
Before you agree to anything, ask the clinic this: what does each dose strength cost, and what will I be paying in month six?
Semaglutide doses step up over the first few months, so a single headline price usually describes the starting dose rather than what you settle at. The answer to that one question tells you whether you are budgeting for the year or for the first invoice.
What it costs, and what moves it
Published Singapore pricing for injectable semaglutide sits at roughly SGD 500 to 900 per month for the medication alone, varying by dose and provider. One published clinic figure puts a pen covering four weekly doses at from SGD 545 including GST.
At Nexus, the initial workup and consultation is from SGD 150, and the first month of our weight loss programme, medication and consultation together, is from SGD 470. What you pay from month two depends on the maintenance dose you settle at, which is not known until we see how you respond. I would rather tell you that than quote a number I would have to revise.
What is not in the headline figure
Three things sit outside the monthly medication price and catch people out:
- The initial workup. Bloods and a suitability check before anything is prescribed, with tests run only where they are needed. Ask what the workup costs separately from the medication, because the two are often quoted as one number.
- Follow-up visits. You will be seen regularly through the escalation, because that is when dose decisions get made.
- The months you did not plan for. That one gets its own section further down.
The honest way to budget is not twelve times the monthly price. It is the workup, plus four ramp months at lower doses, plus eight months at maintenance, plus follow-ups. That total is lower than the naive multiplication, and higher than the starting-month figure that gets advertised.
What MediSave and insurance actually cover
MediSave lets you draw on your account for outpatient treatment of a specific list of conditions under the Chronic Disease Management Programme. The MOH list runs to 23 conditions and begins with diabetes. It also covers hypertension, lipid disorders, stroke, asthma and eighteen others.
Obesity is not on that list. Neither is weight management.
Why the indication decides everything
That single fact is the whole answer, and it explains why people get contradictory information from friends. Semaglutide prescribed for type 2 diabetes is being used for a condition that sits on the list, subject to the annual withdrawal caps of SGD 500 per patient, or SGD 700 where the chronic condition is complex. The identical molecule prescribed for weight management is not, because the condition being treated is not a listed one.
The drug name does not determine this. The indication your doctor is prescribing for does.
Integrated Shield plans do not close the gap
Integrated Shield plans are designed around hospitalisation and inpatient care. A prescription you collect every month as an outpatient sits outside that design, whatever it is for.
The one thing worth doing
Ask your insurer in writing, quoting the exact indication your doctor is prescribing for, before you assume anything either way. A verbal answer from a call centre is worth very little at the point a claim is actually assessed.
Ozempic, Wegovy and Rybelsus: one molecule, three products
Semaglutide is sold in Singapore under more than one name, and the differences are the source of most of the confusion about price.
How the three differ
All three contain the same active ingredient. Ozempic and Wegovy are the same molecule at different dose ceilings, which is why Wegovy is the one licensed for weight. Rybelsus is the same molecule in a tablet, and it behaves quite differently in the body because very little of an oral dose is absorbed.
If you are weighing the tablet against an injection, that comparison has its own guide, because the decision turns on absorption rather than on cost.
Where tirzepatide sits
A different molecule, tirzepatide, works on two receptors rather than one and produced greater weight reduction in the head-to-head SURMOUNT-5 trial. It is covered separately, because it is a different treatment with a different budget.
Getting it legally, and spotting a seller who is not
Semaglutide is a prescription-only medicine in Singapore. You cannot buy it over the counter, from a pharmacy shelf, or from a website that ships it to you. It has to be prescribed by a registered doctor after an assessment.
This is worth taking seriously rather than treating as paperwork. The Health Sciences Authority has removed unauthorised online listings for these medicines, and the reason is straightforward: an injectable bought from an unverified seller has no verifiable cold chain, no verifiable dose, and no way to confirm it contains what the label says.
What a legitimate supply looks like
- A consultation and medical assessment before any prescription is written
- A named, registered doctor who will see you again
- Medication dispensed by the clinic or a licensed pharmacy, not couriered from an unnamed source
- A dose escalation plan, rather than a full-strength pen handed over on day one
What should stop you
A price far below the market range, a seller who does not require a consultation, and anyone offering to ship it to you without seeing you first.
What semaglutide is and how it works
The mechanism
Semaglutide is a GLP-1 receptor agonist. Your body already makes GLP-1 after you eat, but it breaks down within minutes. This is a longer-acting version that stays active for around seven days, which is why it is injected weekly.
The three effects
It works in three ways at once. It acts on appetite signalling in the brain, so you feel hungry less often and think about food less. It slows the rate at which your stomach empties, so meals keep you full for longer. And it improves the insulin response after eating, which is why the same molecule is used in diabetes care.
It targets one receptor. Tirzepatide targets two, which is the mechanistic reason it produced greater weight loss in trials.
Who qualifies, and who should not take it
When treatment is considered
This is a prescription medicine, so a doctor decides. Broadly, treatment is considered for adults with a BMI of 30 or above, or a BMI of 27 or above alongside a weight-related condition such as high blood pressure, raised cholesterol, sleep apnoea, cardiovascular disease, or prediabetes. There is usually an expectation that diet and activity changes have been tried first.
When it is not suitable
It is not suitable if you have a personal or family history of medullary thyroid cancer, Multiple Endocrine Neoplasia syndrome type 2, or a history of pancreatitis. It is not used in pregnancy, breastfeeding, or when planning a pregnancy, and it is not combined with another GLP-1 medicine.
If you are unsure which side of that line you fall on, that is what the initial assessment is for.
The first sixteen weeks, dose by dose
Why the step-up matters
The escalation is not a formality. It exists because going straight to a high dose is what makes people miserable and makes them stop. If side effects are difficult at 2.4 mg, staying at 1.7 mg is a legitimate outcome rather than a failure, and plenty of people do well there.
The injection itself
It is given under the skin in the abdomen, thigh or upper arm, with the site rotated each week. It takes under a minute.
Through the escalation you will be reviewed regularly. Weight, waist measurement and side effects get checked, and bloods are repeated where indicated. Those reviews are where the dose decisions, and therefore the cost decisions, actually get made.
What the results actually look like
Weight reduction targets reached in the trial
The reference trial is STEP 1, published in the New England Journal of Medicine in 2021, which followed 1,961 adults over 68 weeks.
What changed besides the weight
Average weight reduction was 14.9%, around 15.3 kg. Waist circumference fell by 13.54 cm against 4.13 cm on placebo, and systolic blood pressure by 6.16 mmHg. Most participants with prediabetes returned to normal blood sugar.
The cardiovascular result
Separately, the SELECT trial reported a 20% reduction in major cardiovascular events in people with obesity and existing cardiovascular disease but without diabetes. No other weight-loss medicine currently has an outcome result of that kind, and for some patients that matters more than the difference in kilograms.
What the timeline feels like
In practice, appetite changes within the first few weeks. Visible weight change takes three to six months. These are trial averages, and your starting weight, diet, activity and adherence all move the number.
Side effects, and which ones mean you call
The common ones, and when they hit
Most side effects are gastrointestinal, they cluster around dose increases, and they settle.
Who stops, and why
Around 7% of participants stopped treatment because of side effects, against 3.1% on placebo. Serious adverse events occurred in 9.8% against 6.4%, gallbladder problems in 2.6% against 1.2%, and pancreatitis in three cases, 0.2% of the treatment group.
When to call rather than wait
Contact your doctor rather than waiting for your next appointment if you have severe abdominal pain that does not settle, persistent vomiting, signs of an allergic reaction, or symptoms of low blood sugar.
The one to mention before any procedure
Because this slows stomach emptying, tell any anaesthetist or endoscopy team that you are on a weekly GLP-1, and give them enough notice to plan.
What that year bought you, if you stop
This belongs in a cost discussion, because it decides whether the money was well spent.
When treatment stops, appetite returns. In STEP 4, participants who switched to placebo after 20 weeks regained a substantial share of what they had lost, while those who continued kept going. Longer follow-up in STEP 5 showed the effect holding at two years on continued treatment.
The practical reading: this is a treatment you stay on while it is working, not a twelve-month course that ends with a result you keep for free. If you are budgeting for one year and expecting the result to hold on its own afterwards, budget again.
That is not an argument against starting. It is an argument for deciding, before you start, what your plan is for month thirteen. There is a fuller and more sceptical discussion of stopping in our tirzepatide guide, and it applies equally here.
Getting the most out of the treatment
The medication reduces appetite. It does not choose what you eat, and it does not protect your muscle.
Protecting muscle while you lose weight
Prioritise protein at every meal, because weight lost on a GLP-1 includes lean tissue unless you actively defend it. Aim for around 150 minutes of activity a week and resistance training two to three times a week, which is the part that protects muscle.
Eating with a changed appetite
Eat slowly and stop when you are full, since the fullness signal now arrives earlier than you are used to. Drink properly, at least two litres a day. Keep a food record for the first few weeks, because appetite suppression changes eating patterns in ways people genuinely do not notice.
After the weight has stabilised
Some patients also combine treatment with body contouring once weight has stabilised, which addresses shape rather than weight and is a separate decision.
Rapid weight loss can also show in the face, which is one reason some patients ask about dermal fillers later on. That is not automatic, and it is not part of the medication.
Questions to ask before you start
- What does each dose strength cost, and what will I be paying in month six?
- Based on my weight and health, am I actually a candidate?
- What dose will I start on, and how long until maintenance?
- Which side effects should I expect, and which ones mean I call you?
- What is the total first-year cost, including workup, follow-ups and tests?
- What happens if I stop, and what is the plan for that?
- How often will I need to see you?
A consultation should feel like a conversation, not a sale. You should leave understanding the trade-offs, with time to think about it.
If you want to work through that with me, our weight loss programme starts with a medical workup rather than a prescription.
Common questions about Ozempic in Singapore
This article is for information, not medical advice. Speak to a doctor to find out whether semaglutide is appropriate for you.
