This is a dose reference, not medical advice. Follow your prescription and the instructions on your pen.
Quick answer
Start with the carton. The milligrams on your prescription do not tell you which device is in your hand, and the strength printed on the box does: US Ozempic is three pens, 2 mg/3 mL at 0.68 mg/mL, 4 mg/3 mL at 1.34 mg/mL, and 8 mg/3 mL at 2.68 mg/mL.
One of the three has a published click chart. On the 1.34 mg/mL pen, the BC Children’s Hospital Endocrinology and Diabetes Unit counts 18 clicks as 0.25 mg, 36 clicks as 0.5 mg and 72 clicks as 1 mg. It is an off-label clinic practice, the numbers were arrived at by counting rather than published by Novo Nordisk, and they belong to that pen alone. Your count belongs to your pen. It does not travel to a different strength.
Which Ozempic pen do you have?
The strength is printed on the carton and on the pen label, and it is the first thing to read. The FDA label lists all three presentations: “2 mg/3 mL (0.68 mg/mL) for 4 doses of 0.25 mg and 2 doses of 0.5 mg or 4 doses of 0.5 mg, 4 mg/3 mL (1.34 mg/mL) for 4 doses of 1 mg, and 8 mg/3 mL (2.68 mg/mL) for 4 doses of 2 mg in single-patient-use pens.”
| The pen | Concentration | What it can be set to | Doses in the pen | Click chart below |
|---|---|---|---|---|
| 2 mg in 3 mL | 0.68 mg/mL | 0.25 mg or 0.5 mg | 4 at 0.25 mg plus 2 at 0.5 mg, or 4 at 0.5 mg | No |
| 4 mg in 3 mL | 1.34 mg/mL | 1 mg only | 4 | Yes |
| 8 mg in 3 mL | 2.68 mg/mL | 2 mg only | 4 | No |
There is a fourth pen in the folklore: the 2 mg in 1.5 mL, which was also 1.34 mg/mL and is now discontinued. The string “1.5 mL” appears zero times in the current US label. Almost every 18-clicks chart online was counted on that pen, which is why those charts are usually right for a 1.34 mg/mL device and wrong for the box someone is actually holding.
The Ozempic click chart, for the 1.34 mg/mL pen
| Clicks on the 1.34 mg/mL pen | Dose |
|---|---|
| 18 clicks | 0.25 mg |
| 36 clicks | 0.5 mg |
| 72 clicks | 1 mg |
This is the chart the BC Children’s Hospital Endocrinology and Diabetes Unit published on 6 February 2024, for the 1.34 mg/mL pen: in the US, the 4 mg in 3 mL, and the old discontinued 1.5 mL pen.
You can check the arithmetic yourself. One milligram at 1.34 mg/mL is 0.746 mL of liquid. Spread across 72 clicks, that is about 0.0104 mL a click, which puts 18 clicks at 0.25 mg and 36 at 0.5 mg. It closes.
The hospital is plain about what the chart is. It calls the practice “off-label and not recommended by the manufacturer” while also “widely adopted in BC and many clinics across North America”, and says the doses it produces “should be viewed as approximate”. Nobody counted these for Novo Nordisk: the company publishes no clicks-per-dose figure anywhere, and neither does any regulator, so this chart and every other one online rests on someone counting by hand. Counts published elsewhere differ by about 4%.
The one warning that matters: your count belongs to your pen
Every multi-dose semaglutide FlexTouch delivers about 0.75 mL at a full dose, whatever its strength. The dial travel is the same on all three Ozempic pens and only the concentration changes, so the same click count on a pen of a different strength is a different dose, by a factor of two or four. The chart above was counted on a 1.34 mg/mL pen. If your carton says 0.68 mg/mL or 2.68 mg/mL, it is not your chart.
That is also why there is no chart here for the other two pens. Nobody has counted and published one for the 0.68 or 2.68 mg/mL pens, and working ours out from the label would be inventing rather than reporting. On both of those, and on the 1 mg pen too, the dose counter sets the dose directly: 0.25 mg or 0.5 mg on the starter pen, 1 mg on the 4 mg pen, 2 mg on the 8 mg pen.

Wondering what is normal? Ozempic side effects by dose has every rate from Novo’s label, including the three warnings most articles skip.
Ozempic dosing schedule
The typical Ozempic dosing schedule: 0.25 mg weekly for weeks 1-4 while your body adjusts, 0.5 mg from week 5, then 1 mg from week 9 if you need more, with 2 mg as the top step when 1 mg isn’t enough. Each move up usually comes after at least four weeks at the current dose, and the pace is set with your prescriber.
The first two steps happen on one pen. From 1 mg onward, every step is a new pen at a new concentration, which is the part that catches people out when they carry a feel for the dial from one box to the next.
What a “click” actually is
A click is one notch of the pen’s drive mechanism, and it is a real, equal step of volume. An industrial CT teardown of an Ozempic pen by Lumafield, read alongside Novo Nordisk’s own dose-setting patents, shows the mechanism advancing the same distance each notch. That is why a counted chart can hold together, and why clinicians publish them openly.
What a click cannot tell you on its own is milligrams. Milligrams depend on the concentration sitting in the cartridge, so an identical notch is a different amount of drug on each of the three pens. The count is a property of the device, the dose is a property of the device plus the liquid in it.
Novo Nordisk’s own instruction is not to count, and it is worth reading in full: “You will hear a ‘click’ every time you turn the dose selector. Do not set the dose by counting the number of clicks you hear.” The same Instructions for Use add: “The dose selector clicks differently when turned forward or backward. Do not count the pen clicks.” The dose counter and the dose pointer are the method the manufacturer supports, and if a count and the window disagree, the window wins. Clinics that count anyway do it knowing that.
Brand pen vs compounded semaglutide
If you’re on brand Ozempic, you have a dial pen, and the table above tells you which one.
If you’re on compounded semaglutide, you have a vial and an insulin syringe instead of a dial, so you measure in units and how many units equals your dose depends on the concentration your pharmacy mixed. The syringe units to mL to mg guide walks through that conversion, and the Wegovy dose chart covers the Wegovy devices if you switch.
Tirzepatide works differently again. In the US, Mounjaro comes as single-dose pens and single-dose vials, and also as a multi-dose vial and a single-patient-use KwikPen that each hold four weekly doses. The Mounjaro dose chart lays out all six strengths and the titration steps between them.
Same molecule, different product. Brand pens are FDA-approved and quality-controlled. Compounded vials are not FDA-approved, so the exact concentration depends on the source, which is exactly why the unit math changes vial to vial. If that’s you, our GLP-1 dose calculator does the units for your specific concentration, and the compounded semaglutide and tirzepatide guide covers the rest.
How to track it without counting in your head
Counting clicks works until you lose track of which week you’re on, whether you already took this week’s dose, or how a dose change lined up with your side effects. The thing worth logging alongside the dose is which pen it came from, because the same milligram arrives from a different device after a refill and that is what moves the count.
Regimen logs your dose, your pen, and how you’re feeling on one timeline, so the pattern is there when you look for it instead of living in your Notes app. Set it up once and the reminder handles the rest. Track your Ozempic doses in Regimen.
Frequently Asked Questions
How many clicks is 0.25 mg of Ozempic?
18 clicks, on the 1.34 mg/mL pen. That is the US 4 mg in 3 mL pen, and the figure comes from the BC Children’s Hospital Endocrinology and Diabetes Unit chart, which was arrived at by counting rather than published by Novo Nordisk. The hospital calls the practice “off-label and not recommended by the manufacturer” and says its doses “should be viewed as approximate”. A 0.25 mg prescription usually arrives in a different pen, the 2 mg in 3 mL at 0.68 mg/mL, which selects 0.25 mg in its own dose counter and which the 18-click figure does not belong to.
How many clicks is 0.5 mg of Ozempic?
36 clicks, on the 1.34 mg/mL pen, from the same BC Children’s Hospital chart, counted by hand and described by the hospital as off-label and approximate. A 0.5 mg prescription usually arrives in the 2 mg in 3 mL starter pen at 0.68 mg/mL, half that concentration, so it selects 0.5 mg in its own dose counter and the 36-click figure does not carry across to it.
How many clicks is 1 mg of Ozempic?
72 clicks, on the 1.34 mg/mL pen, which is the pen the 1 mg dose comes in: 4 mg in 3 mL. The BC Children’s Hospital chart published the count and the arithmetic closes, because 1 mg at 1.34 mg/mL is 0.746 mL, which across 72 clicks is about 0.0104 mL a click. It is an off-label count someone arrived at by counting, published counts elsewhere differ by about 4%, and the pen’s own dose counter sets 1 mg directly.
Why does the 2 mg Ozempic pen have different clicks?
Because it holds 8 mg in 3 mL, 2.68 mg/mL, twice the concentration of the 1 mg pen, while every multi-dose semaglutide FlexTouch delivers about 0.75 mL at a full dose whatever its strength. Same dial travel, twice the drug in it. Nobody has counted and published a chart for the 2 mg pen, so the numbers on this page stay with the 1.34 mg/mL pen they were counted on.
Is counting Ozempic clicks safe?
A click is a real, equal step of volume. An industrial CT teardown of an Ozempic pen and Novo Nordisk’s own dose-setting patents both show the dial advancing the mechanism the same distance each notch, which is why a counted chart can hold together at all. What makes a count dangerous is carrying it to a pen of a different strength, because the milligrams in that volume change with the concentration. Novo Nordisk asks you not to count on any pen: “The dose selector clicks differently when turned forward or backward. Do not count the pen clicks.” The dose counter is the method the manufacturer supports.
What is the Ozempic dosing schedule?
0.25 mg weekly for the first four weeks, 0.5 mg from week 5, then 1 mg from week 9 if you need more, with 2 mg as the top step when 1 mg isn’t enough. Moves up typically come after at least four weeks at the current dose. From 1 mg onward each step is a different pen, not a different setting on the same one.
How many clicks is 2 mg of Ozempic?
The 2 mg dose comes in its own pen, 8 mg in 3 mL at 2.68 mg/mL, and nobody has counted and published a chart for that one, so this page does not carry a number for it. What is known is the shape of it: that pen delivers about the same 0.75 mL at a full dose as the 1 mg pen while holding twice the drug, so a count borrowed from the 1.34 mg/mL chart would deliver twice the milligrams. Select 2 mg in the dose counter.
What app tracks Ozempic doses?
Regimen tracks your dose, pen, and side effects on one timeline and reminds you when your weekly shot is due.
Sources
- FDA label for Ozempic, Dosage Forms and Strengths, revised 05/2026: the three US pen presentations and their concentrations.
- BC Children’s Hospital Endocrinology and Diabetes Unit, 6 February 2024: the 18, 36 and 72 click figures for the 1.34 mg/mL pen, described there as off-label, widely adopted across North America, and approximate.
- Ozempic US Instructions for Use: the two quoted sentences asking you not to count clicks.
- Lumafield industrial CT teardown of an Ozempic pen, read with Novo Nordisk’s dose-setting patents: a click is an equal volume step.
Pen presentations change. If this page and the leaflet in your box disagree, the leaflet in your box is right.
Related tools
Related reading
- Wegovy dose chart: every dose and what the clicks mean
- Best GLP-1 tracker apps 2026
- Microdosing GLP-1s: the practical guide
Ready to track your GLP-1?
- Smart reminders so you never miss a dose
- Track weight, photos, and progress over time
- Medication level curves for every compound