How many doses are in a Wegovy 1.7mg pen?

What the SmPC tells us about the 1.7mg pen's dose count

The Wegovy SmPC on the eMC describes each pre-filled pen as containing a fixed number of doses at a fixed strength. For the 1.7mg pen that number is four. The device is a multi-dose, single-patient pen: you inject once a week, on the same day each week, and on the fourth use the pen is finished. There is no reservoir left to draw from after that fourth dose; the pen should be disposed of in a sharps container rather than kept in the fridge in case there is more to come.

That four-dose structure is consistent across the entire Wegovy range. Every strength (0.25mg, 0.5mg, 1.0mg, 1.7mg and 2.4mg) is packed as four weekly doses per pen. If you want to check the arithmetic for a different point on the schedule, the 0.25mg starter pen follows exactly the same principle, and the full dose-count overview for Wegovy covers every strength in one place.

Semaglutide (the active ingredient in Wegovy) is a GLP-1 receptor agonist that reduces appetite and slows gastric emptying. The 1.7mg dose is the penultimate step before the licensed 2.4mg maintenance dose, and clinical evidence from the STEP programme informed how the titration schedule was designed to balance tolerability with effectiveness. The NHS semaglutide medicines page sets out how the schedule works and what to expect at each stage.

Where 1.7mg sits in the Wegovy titration and why timing matters

Wegovy treatment starts at 0.25mg and moves upward roughly every four weeks, so by the time a patient reaches 1.7mg they are typically at least sixteen weeks into the programme. Each step exists to let the body adjust before the dose rises again: moving too quickly increases the likelihood of nausea, vomiting and other gastrointestinal effects that are the most commonly reported side effects across the STEP trials.

Because one pen covers exactly four weeks, supply timing becomes practical rather than theoretical. If a prescription arrives mid-month, or you reorder around a bank holiday Monday, the four-dose count is the anchor: one pen, four injections, four weeks. Running out unexpectedly (even by a day or two) at the 1.7mg stage can disrupt a titration, so most people find it worth reordering before the last dose rather than after. The full Wegovy dose range guide explains the clinical logic behind each step and when a prescriber might pause or slow titration if side effects become a problem.

The 1.7mg pen is not the final word on dose for everyone. Some patients remain at 1.7mg longer than a single four-week cycle if their prescriber judges 2.4mg premature; others move straight through to maintenance. That decision belongs with the prescriber, not the pen count. What does not change is that each 1.7mg pen always delivers four doses, and if you want a clear breakdown of how many mg are in a Wegovy pen at each stage of the schedule, that page covers the figures across all strengths.

Storing and using the 1.7mg pen correctly

Wegovy pens are stored in a refrigerator at 2–8°C. There is a limited window during which a pen can be kept at room temperature — the exact duration is specified in the Patient Information Leaflet that comes with the pen, and that is the right place to check it rather than relying on any third-party source. Once the window has passed an unused pen should not be used. It is worth keeping the pen in its original packaging in the fridge, away from the freezer compartment and away from direct sunlight.

Injection sites for semaglutide are the abdomen, thigh or upper arm; rotating sites reduces the chance of localised skin reactions. You should not inject into skin that is bruised, tender or has a rash. The needle should be changed for each injection, fresh needles reduce discomfort and maintain sterile technique. After the fourth dose, dispose of the pen safely in a licensed sharps container, your local council or GP surgery can advise on collection.

One question our prescribers hear fairly often is whether a partially used pen can be carried in hand luggage. The answer involves airline policy as much as medicine policy: the pen should be in original packaging with the prescription documentation, and temperature management during travel needs planning in advance. For fuller detail on carrying and using pens away from home, the general FAQs cover the most common practical questions. If your query is specific to your circumstances, the aftercare team is available seven days a week.

Private access to Wegovy 1.7mg and how a consultation works

Wegovy is a prescription-only medicine. In England, NHS access under NICE's appraisal (TA875) is restricted to specialist weight management services and carries eligibility criteria including a BMI of at least 35 and one or more weight-related conditions, alongside a two-year treatment limit. Waiting times for those services are commonly long. Private prescribing is the alternative for people who do not meet those criteria or prefer not to wait.

At nume, a GPhC-registered Independent Prescriber reads every consultation personally, the same day, on working days. Identity and weight are verified, your health history is reviewed and, if Wegovy is clinically suitable, a prescription is issued and the pen dispatched the same day for free next-working-day delivery by DPD in plain packaging. There is one transparent price that includes the consultation, prescription, treatment and delivery; there are no subscriptions and no hidden fees. If you want to understand what Wegovy costs privately before starting, the cost and access page sets out what is included. A broader look at all available weight-loss treatments is the right starting point if you are still comparing options. Wegovy at 1.7mg is one step on a clinically managed journey: the prescriber, not the pen count, guides what comes next.