The Ozempic label starts everyone at 0.25 mg once weekly for four weeks, then moves to 0.5 mg, and allows 1 mg after at least four weeks at 0.5 mg and 2 mg after at least four weeks at 1 mg. 2 mg once weekly is the maximum, approved by the FDA in March 2022 alongside the existing 0.5 mg and 1 mg doses.
What most charts leave out is that only the first step has a fixed purpose. The label describes 0.25 mg as a dose for treatment initiation that is not effective for glycaemic control, while 0.5 mg, 1 mg and 2 mg are all maintenance doses in their own right. Moving up the ladder is a clinical decision about blood glucose, not a calendar everyone finishes.
- Four labelled steps: 0.25 mg, 0.5 mg, 1 mg, 2 mg, each held for at least four weeks before any increase.
- 0.25 mg is an initiation dose. The label states plainly that it is not effective for glycaemic control.
- Three of the four steps are licensed maintenance doses, so a schedule can legitimately stop at 0.5 mg or 1 mg.
- SUSTAIN FORTE compared 1 mg against 2 mg directly over 40 weeks: HbA1c fell 1.9 and 2.2 percentage points (PMID 34293304).
- Ozempic is licensed for type 2 diabetes. Every dose in this chart belongs to that label, not to a weight management one.
The Ozempic dosage chart, week by week
Read this as the earliest each step can begin rather than as a timetable. Every increase in the label is conditional on at least four weeks at the dose below it, and on the prescriber judging that more glycaemic control is needed.
| Week | Dose | What the label calls it | Earliest move up |
|---|---|---|---|
| 1 to 4 | 0.25 mg once weekly | Treatment initiation, not for glycaemic control | Week 5, to 0.5 mg |
| 5 to 8 | 0.5 mg once weekly | Maintenance dose | Week 9, to 1 mg if needed |
| 9 to 12 | 1 mg once weekly | Maintenance dose | Week 13, to 2 mg if needed |
| 13 onward | 2 mg once weekly | Maximum recommended dose | No higher labelled dose |
Thirteen weeks is therefore the fastest anyone reaches the ceiling, and most people do not. Two of those four steps are optional escalations rather than scheduled ones, which is why two people can both be correctly on Ozempic for a year and be on doses eight times apart.
Why the first month is not the treatment
The 0.25 mg starting dose exists to let the gut adjust. Gastrointestinal effects are the most common reason people stop a GLP-1, and starting low is what makes the higher doses tolerable rather than what makes them work. The label is unusually blunt about it: 0.25 mg is for initiation and is not effective for glycaemic control.
The practical consequence is that a first month on Ozempic is not a test of whether Ozempic works. It is a test of whether the first step is tolerated. The same logic applies further up the ladder, and both semaglutide labels allow a step to be held longer than four weeks when the current dose is not comfortable. We set out what the trials logged on tolerability in our piece on semaglutide side effects.
Which doses the trials actually measured
Ozempic was developed as a diabetes drug, so its dose evidence is mostly about HbA1c rather than body weight. Each row names the dose, the population, the duration and the endpoint the trial was built around.
| Trial | Doses studied | Population | Duration | What it measured |
|---|---|---|---|---|
| SUSTAIN-6 (PMID 27633186) | 0.5 mg and 1 mg | Type 2 diabetes at high cardiovascular risk, 3297 adults | 104 weeks | First cardiovascular death, non-fatal MI or non-fatal stroke: 6.6% on semaglutide vs 8.9% on placebo (HR 0.74) |
| SUSTAIN FORTE (PMID 34293304) | 1 mg vs 2 mg | Type 2 diabetes on metformin, HbA1c 8.0 to 10.0%, 961 adults | 40 weeks | HbA1c -1.9 points on 1 mg, -2.2 points on 2 mg |
| FLOW (PMID 38785209) | 1 mg | Type 2 diabetes with chronic kidney disease | Median 3.4 years | Major kidney disease events, 24% lower risk than placebo |
What doubling the dose bought
SUSTAIN FORTE is the only trial that put two Ozempic doses against each other in the same people, so it is the cleanest answer to the question every dosage chart raises. Over 40 weeks, 2 mg beat 1 mg on HbA1c by 0.23 percentage points and on body weight by 0.93 kg, on the trial product estimand. Mean weight change was -6.9 kg at 2 mg and -6.0 kg at 1 mg from a baseline BMI of 34.6.
That is a real difference and a statistically significant one, and it is also smaller than most people expect from doubling a dose. The step from 1 mg to 2 mg is a glycaemic intensification option, which is exactly how the trial authors framed it.
The pens do not map onto the chart
A dosage chart lists milligrams per week. A pharmacy hands over a pen labelled in milligrams per millilitre, and the two numbers are unrelated. Ozempic uses three marketed pen strengths, each holding four weeks of one dose, with a dose selector that turns to the milligram figure directly.
| Pen | Concentration | Doses it delivers |
|---|---|---|
| 2 mg/3 mL | 0.68 mg/mL | Four 0.25 mg doses, or four 0.5 mg doses |
| 4 mg/3 mL | 1.34 mg/mL | Four 1 mg doses |
| 8 mg/3 mL | 2.68 mg/mL | Four 2 mg doses |
Three different concentrations across one dosage chart is the reason unit conversions and click counts circulating online are unreliable for Ozempic. The pen meters the volume itself, so there is no unit arithmetic to do, and a figure calculated for one pen strength is wrong for the other two. The arithmetic that does apply to vials is in our mg to units explainer.
What the label says about a missed dose
Ozempic is weekly, so a missed dose is a common question rather than an edge case. The prescribing information distinguishes by how much time has passed: within five days of the scheduled day, the missed dose can still be given; after five days, it is skipped and the next dose falls on the usual day. The injection day itself can be changed as long as at least 48 hours separate two doses.
That is a description of what the document says, not a recommendation. What to do about your own missed dose is a question for the prescriber or pharmacist who knows the rest of your regimen.
This is a diabetes chart, not a weight loss chart
Ozempic is licensed in the United States for type 2 diabetes, to reduce major adverse cardiovascular events in adults with type 2 diabetes and heart disease, and since January 2025 to reduce the risk of worsening kidney disease and cardiovascular death in adults with type 2 diabetes and chronic kidney disease. Weight loss is not one of its indications, which matters when a chart is read as a weight loss plan.
It also matters for the percentages people bring to these pages. The widely quoted semaglutide weight loss figures come from trials of 2.4 mg, a dose above Ozempic’s 2 mg ceiling and belonging to a different brand and label. We go through what Ozempic’s own trials recorded for weight separately, and the two ceilings are compared in Wegovy vs Ozempic.
See what these doses mean for your own weight
Put your starting weight against the trial averages instead of a population percentage.
FAQ
What is the maximum dose of Ozempic?
2 mg once weekly. The FDA approved that dose in March 2022, alongside the 0.5 mg and 1 mg doses already licensed. Anything above 2 mg is a different product: Wegovy maintains at 2.4 mg and, since March 2026, has a 7.2 mg version in the United States.
How long does it take to get to 2 mg of Ozempic?
Thirteen weeks at the fastest. The label requires four weeks at 0.25 mg, then at least four weeks at 0.5 mg before 1 mg, then at least four weeks at 1 mg before 2 mg. Steps can be held longer, and many people never move past 0.5 mg or 1 mg because those are licensed maintenance doses.
Is 0.25 mg of Ozempic a treatment dose?
No. The prescribing information describes 0.25 mg as a dose for treatment initiation and states that it is not effective for glycaemic control. Its job is to let the body adjust before the doses that were actually tested for effect.
Is 1 mg or 2 mg of Ozempic better?
SUSTAIN FORTE compared them directly in 961 adults with type 2 diabetes over 40 weeks. HbA1c fell 2.2 percentage points on 2 mg against 1.9 on 1 mg, and body weight fell 6.9 kg against 6.0 kg. The higher dose was superior, by a margin the authors framed as an intensification option rather than a step change.
How many doses are in an Ozempic pen?
Four weekly doses of a single strength, on the marketed pens. The 2 mg/3 mL pen gives four 0.25 mg doses or four 0.5 mg doses, the 4 mg/3 mL pen gives four 1 mg doses, and the 8 mg/3 mL pen gives four 2 mg doses.
What happens if a weekly Ozempic dose is missed?
The label distinguishes by timing: within five days of the scheduled day the dose can still be administered, and after five days it is skipped with the next dose taken on the usual day. Applying that to your own schedule is a question for your prescriber or pharmacist.
Sources
- Marso SP, Bain SC, Consoli A, et al. Semaglutide and Cardiovascular Outcomes in Patients with Type 2 Diabetes (SUSTAIN-6). N Engl J Med. 2016;375(19):1834-1844. PMID: 27633186
- Frias JP, Auerbach P, Bajaj HS, et al. Efficacy and safety of once-weekly semaglutide 2.0 mg versus 1.0 mg in patients with type 2 diabetes (SUSTAIN FORTE): a double-blind, randomised, phase 3B trial. Lancet Diabetes Endocrinol. 2021;9(9):563-574. PMID: 34293304
- Perkovic V, Tuttle KR, Rossing P, et al. Effects of Semaglutide on Chronic Kidney Disease in Patients with Type 2 Diabetes (FLOW). N Engl J Med. 2024;391(2):109-121. PMID: 38785209
- Ozempic (semaglutide) injection, prescribing information. Novo Nordisk. Dosage and administration, dosage forms and strengths.
- FDA approval of the 2 mg dose of semaglutide injection for type 2 diabetes, March 2022.
This article is for information only and is not medical advice. Dosing, suitability and any change to treatment are decisions for your prescriber.