Is Wegovy Taken Once a Week? How the Injection Schedule Works

Step 1: Choosing your weekly injection day and sticking to it

The first practical question most people ask is which day to pick. The short answer: whichever one you can reliably repeat. Some people tie it to a Friday so any mild nausea settles over the weekend; others go for a Monday to keep it aligned with the working week. If you know a holiday or a particularly hectic period is coming up, you can shift a dose by a day or two in either direction, but you should check this with your prescriber rather than guessing. The full Wegovy treatment overview has more on what to expect across the weeks.

Once your day is set, the cadence is simple. Same day, same time if possible, anywhere on the abdomen, thigh, or upper arm, rotating the exact spot each time to look after the skin. Each pen is pre-filled and pre-set; there is no dial to turn or measurement to draw. You inject and you are done until the following week.

People sometimes ask whether missing a day matters. The NHS patient information for semaglutide on the NHS website covers missed doses in detail, and that guidance, alongside your Patient Information Leaflet, is the right place to check, not general advice on a content page. If more than two days have passed since the missed dose, the guidance differs from if it has been fewer than two days.

Step 2: Moving through the dose escalation schedule

Wegovy does not start at the maintenance dose. The licensed titration pathway begins at 0.25 mg and moves upward in stages, typically at roughly four-week intervals: 0.25 mg, then 0.5 mg, then 1.0 mg, then 1.7 mg, and finally 2.4 mg. From January 2026, the MHRA approved a further increase to 7.2 mg for eligible patients, initially delivered as three 2.4 mg pens in a single week, and then, from April 2026, available as a dedicated single-dose 7.2 mg pen. The MHRA's announcement of the single-dose 7.2 mg pen approval confirmed it is licensed for adults with a BMI of 30 or above.

The staged approach exists for a clear reason: the gastrointestinal side effects of semaglutide, particularly nausea, tend to be worst in the early weeks and after each dose increase. Moving slowly through the schedule gives your system time to adjust. Some prescribers allow extra time at a given level if side effects are prominent; that decision belongs with the prescriber, not with the patient acting on their own. If you are curious what the transition from one dose to the next feels like for many people, what to expect around week five gives a grounded picture of that mid-schedule period.

The 7.2 mg pen is the current maximum dose and is only appropriate for adults with a BMI of 30 or above. Eligibility for it is assessed at that stage of treatment, not at the outset.

Step 3: Staying on a once-weekly cadence for the long term

One of the questions that comes up regularly is whether Wegovy ever becomes a monthly injection as treatment progresses. It does not. The once-weekly frequency stays constant regardless of which dose level you are on, right up to and including 7.2 mg. If you have seen suggestions that it might become monthly, that confusion may come from the fact that some people receive one pen at a time and each pen covers four weekly doses, so deliveries may arrive monthly, but the injections themselves remain weekly. There is a longer explanation of why Wegovy is not a monthly injection if that is what you were searching for.

Because semaglutide has a half-life of roughly one week in the body, the once-weekly design is not arbitrary. It is what keeps blood concentrations stable enough to suppress appetite consistently and avoid the peaks and troughs that would come from less frequent dosing. Daily administration would offer no advantage and would significantly change the tolerability profile. The weekly structure also makes it genuinely manageable for most people, easier to build into a routine than a daily tablet, yet infrequent enough that a busy week rarely derails you. For a detailed look at how the medicine works and what the evidence says about results, the semaglutide treatment page covers that ground fully.

Cost is a fair consideration for anyone committing to a weekly medicine. Private pricing for Wegovy varies by dose and provider. If you want context on what to expect and what a legitimate price should include, the Wegovy cost page sets out the landscape honestly, including what market prices have looked like since Eli Lilly's 2025 list-price changes prompted wider discussion.

What this means for suitability and next steps

Wegovy is a prescription-only medicine licensed for adults with a BMI of 30 or above, or 27 to 29.9 with at least one weight-related health condition such as high blood pressure, type 2 diabetes, or high cholesterol. Lower BMI thresholds apply for some ethnic backgrounds under UK guidance. Meeting those numbers is the starting point; a prescriber then assesses the whole picture, including any medicines you already take and any conditions that might make semaglutide unsuitable. If you are new to this treatment and want to understand what Wegovy is and how it works, that page covers the basics clearly before you commit to a consultation. Wegovy is not recommended during pregnancy, breastfeeding, or while trying to conceive, and it is not licensed for anyone under 18.

The once-weekly structure makes it one of the more practical injection schedules available, but practical and suitable are different questions. A prescriber's review is what connects them. At nume, a GPhC-registered Independent Prescriber reads every consultation personally on the day it arrives. If you order by midday on a working day and are clinically approved, your treatment is dispatched that afternoon and delivered free the next working day by DPD, in plain packaging. If you would like to find out whether Wegovy's once-weekly schedule is right for you, speak to our prescribers, the consultation is free and there is no obligation.