How many doses are in a single Wegovy pen?

What the official prescribing schedule tells us about pen doses

The licensed Wegovy titration schedule, as set out in the SmPC and discussed in NICE's appraisal of semaglutide (TA875), works by keeping patients at each strength for roughly four weeks before any increase. The four-doses-per-pen design maps neatly onto that structure: one pen, one period, one decision point. When the evidence from the STEP 1 trial (published in the New England Journal of Medicine) showed that patients needed a gradual, stepped approach to reach the 2.4 mg maintenance dose, that slow climb was built directly into how the pens are manufactured and supplied. Patients are not expected to split a pen across strengths or carry a partial pen into the next month. Each pen is complete in itself. That is worth knowing if you are comparing costs across providers, because the unit of supply is always the pen, not the individual injection.

There is one practical wrinkle worth flagging. If you use a dose early in the week and feel you may have wasted an injection (say, through a technique error) do not attempt a second injection to compensate. The prescriber and the Patient Information Leaflet on the eMC are the right resources for guidance on a missed or uncertain dose. The pen's dose counter is not a target to hit; it is a maximum.

The 7.2 mg pen is a different format entirely

In April 2026 the MHRA approved a dedicated single-dose 7.2 mg Wegovy pen, one pen, one injection, not four. That is a deliberate design change, not an exception to the standard rule. The single-dose format was created specifically for the higher maintenance dose and carries its own prescribing criteria: BMI of 30 or above, with the standard titration schedule still starting at 0.25 mg. Patients do not arrive at 7.2 mg by moving up from a 2.4 mg four-dose pen in one step; the titration path to that dose is managed by a prescriber over many months. So if you are reading about the 7.2 mg pen and wondering whether that changes the answer to how many doses are in a Wegovy pen, it does, but only at that specific strength, and only under a separate clinical pathway. For the five standard strengths (0.25 mg through to 2.4 mg), four doses per pen remains the correct and consistent answer. You can read more about the full Wegovy dose range if you want to see how all the strengths fit together.

What this means when you're counting pens against your prescription

A standard private Wegovy prescription typically covers one month, meaning one pen. If your prescription specifies two pens, that is eight doses, eight weeks of treatment at that strength. This matters if you are ordering from an online pharmacy and trying to work out whether what arrives matches what you were prescribed. When you order through a regulated service, the pen count on the label, the prescription quantity and the clinical review should all align. At nume (sorry, at a GPhC-registered pharmacy like ours) every repeat order goes through a prescriber review before dispatch, so there is a clinical check on the quantity as well as the strength. The pen arrives via DPD in plain, unbranded packaging, and you can track it to the hour; the dose counter on the pen itself will confirm you have four injections ready to use.

If you are uncertain about how many pens you have been prescribed, or whether the quantity covers the number of weeks you expect, that is a question for your prescriber's aftercare team rather than something to work out from the packaging alone. You can also review what the mg figure on a Wegovy pen actually means if the label is causing confusion about strength versus dose count.

Eligibility, the prescription requirement and what comes next

Wegovy is a prescription-only medicine. A prescriber assesses suitability before any pen is dispensed. The licensed criteria cover adults with a BMI of 30 or above, or 27 to 29.9 alongside at least one weight-related health condition; lower BMI thresholds can apply for some ethnic backgrounds under UK guidance. NICE's TA875 recommendation adds further criteria for NHS access, but private prescribing follows the licensed SmPC criteria. If you are starting out, it is helpful to understand how many doses are in the Wegovy 0.25 mg pen you will receive first, and equally useful to know how many doses the 1.7 mg pen contains as you progress through the later stages of titration. Services that include a straightforward route to a repeat prescription reduce that friction considerably. If you are thinking about starting Wegovy and want to understand the full picture (including which strength you would likely begin on and how the titration works in practice) our prescribers are available to talk it through. Check your eligibility and start a free consultation.