Wegovy dose strengths come in four steps: 1.5mg, 4mg, 9mg and 25mg. Almost nobody starts on the one they eventually stay on.

Here's why the dose moves, what changes when it does, and what to expect at the reviews along the way.

Why the dose isn't fixed from day one

Treatment starts at the lowest strength, 1.5mg, regardless of your eventual goal dose. Wegovy tablets contain semaglutide. The NHS's medicines information on the active ingredient is a useful reference alongside your Patient Information Leaflet.

The step-up isn't about working towards the real treatment. The lower doses are genuinely part of treatment. They let your body adjust before a higher dose arrives. Jumping straight to a higher strength doesn't get you further, faster. It mainly increases side effects.

The four Wegovy dose strengths

Each strength plays a different part in treatment. Your prescriber decides the actual pace based on how you're responding.

1.5mg: the starting dose for almost everyone, introducing your body to the medicine with the mildest side-effect profile
4mg: a common next step once the starting dose is well tolerated, often bringing a more noticeable effect on appetite
9mg: often where people settle if lower doses aren't giving enough effect
25mg: the highest authorised strength, typically reached only if lower doses haven't been sufficient

Not everyone needs to reach the top strength. Plenty of people get the result they need at 4mg or 9mg.

How each strength is supplied and taken

Each strength comes as its own clearly labelled tablet. Checking the number on the pack before you take it confirms you have the right strength for this stage of treatment.

Store tablets as your patient leaflet describes, and always keep them in the original packaging so the strength stays clear at a glance. Take your dose at a similar time each day, as your prescriber advises, since a consistent routine makes it far easier to notice how you're actually responding. A quick check of the pack before opening it costs seconds and avoids any mix-up between similar-looking strengths.

How the step-up schedule works

Your prescriber sets the specific timing. Doses generally don't increase until you've tolerated the current one for several weeks.

That wait matters. It's long enough to know whether nausea or other side effects are settling, as covered in our guide to managing nausea and appetite changes early on, before adding a higher dose on top of side effects that haven't resolved yet.

If you miss a dose at your current strength

Missing a dose happens occasionally. Your patient information leaflet sets out exactly how close to your next scheduled dose you can still take a missed one, and how to get back on schedule if too much time has passed.

Don't guess, and don't double up to make up for it. If you're unsure whether to take a missed dose or wait for the next one, contact our team before deciding on your own. Missing one dose occasionally doesn't undo your progress, but a pattern of missed doses is worth mentioning at your next review, since it can affect how your prescriber reads your response to the current strength.

What happens at a dose review

Dose reviews happen as part of your ongoing consultation, not as a separate hurdle. Your prescriber checks how you've tolerated the current dose, including any side effects and how they've changed.

You talk through anything you've been tracking. Your prescriber reviews your progress against what treatment is meant to be doing at this stage, not just the number on the scale. Together you decide to hold, increase, or occasionally decrease your dose, and agree the next steps.

Questions worth raising at your review

A short list of prompts can make the conversation more useful:

are the side effects at this dose genuinely settling, or have I just gotten used to them
has my appetite change levelled off, or is it still shifting
is there a reason to stay at this dose rather than increase
what should I expect to feel differently after the next increase

Keeping a symptom diary between reviews

A short daily note is more useful than memory alone. Jotting down what you ate, any nausea, energy levels, and roughly when symptoms appeared gives your prescriber something concrete to work from at the next review.

You don't need anything elaborate. A few words in a notes app after each meal, or a simple paper diary by the fridge, both work. Patterns matter more than single bad days: a diary shows whether nausea clusters around dose day, whether it's fading week by week, or whether it's actually getting worse, which is exactly the kind of detail that shapes whether your dose holds or moves at the next review.

Why some people stay on a lower dose

There's no correct dose that applies to everyone. Some people get meaningful appetite reduction at 4mg and have no reason to go higher. Others need 9mg or 25mg for the same effect.

Staying on a lower dose isn't a sign of doing it wrong. It's treatment finding the level that works for your body. Two people starting on the same day can end up on entirely different doses six months later. Both are doing exactly what treatment is meant to do.

What "tolerating" a dose actually means

Tolerating a dose doesn't mean feeling nothing. It means side effects stay manageable and don't stop you eating enough, working, or sleeping properly.

Mild nausea, a smaller appetite, or the odd off day can all sit within a tolerated dose. What matters is the trend: are things settling within a week or two, or getting steadily worse. Confusing "tolerating" with "loving it" leads some people to ask for a lower dose when they're actually managing perfectly well, and confusing it with "coping somehow" leads others to push through side effects that should have been raised sooner.

What changes as the dose goes up

Higher doses generally bring a stronger effect on appetite. They also carry a higher chance of the gastrointestinal side effects covered in our first-month guide. Nausea especially tends to reappear briefly after each increase before settling again.

Some people also notice portion sizes that felt normal at a lower dose start to feel like too much at a higher one. That's a sign the new dose is working, not something to worry about.

Never adjust the dose yourself

Don't increase your own dose to get there faster. Don't split or combine tablets to make an in-between strength either. The strengths exist as they do for a reason. Self-adjusting removes the safety margin the schedule is built around.

This applies just as much to slowing down without telling anyone. If a dose feels wrong, raise it at your next review. Don't decide alone.

Older adults and the pace of dose increases

Age alone doesn't set your dose. Your prescriber still works through the same four Wegovy dose strengths in order, based on how you respond.

Older adults sometimes take a more cautious path, with slightly longer gaps between increases while your prescriber watches for dehydration from reduced appetite and fluid intake, or interactions with other regular medicines. This isn't a different treatment plan, just closer attention within the same schedule. Mentioning any other conditions or medicines at every review, not only the first one, helps your prescriber judge the right pace for you specifically.

If side effects don't settle at a new dose

Occasionally, side effects that were manageable at a lower dose don't settle within a reasonable window after an increase. Raise this before your next scheduled step, rather than deciding alone to wait it out or drop back down without telling anyone.

Get in touch with our team if this happens. A small adjustment to timing, or a pause at the current dose, is often all that's needed.

If you're also managing cholesterol or blood pressure

Weight loss at any dose can affect how your other medicines work. This isn't because Wegovy interacts with them directly. It's because the underlying numbers it's treating are moving. Our articles on weight loss and high cholesterol and weight loss and blood pressure cover this in more depth.

Mention any medication for either at every dose review, not just your first consultation. A dose that changes your weight quickly can sometimes call for a dose change in your other medicines too, which is easy to miss if you only think of it as a weight loss appointment.

Planning a pregnancy while on Wegovy

Wegovy isn't suitable during pregnancy, at any dose strength. If you're planning a pregnancy, trying to conceive, or think you might be pregnant, tell your prescriber straight away rather than waiting for your next scheduled review.

Your prescriber will talk you through stopping treatment and an appropriate interval beforehand, since this matters more than which strength you're currently on. This applies however far through the four Wegovy dose strengths you've reached, whether you're still on 1.5mg or have moved up to 25mg.

Switching prescriber or pharmacy mid-titration

Moving your care partway through titration is manageable with the right handover. Ask your current prescriber for a summary of your dose history, including when each increase happened and how you tolerated it.

Bring this to your new prescriber or pharmacy rather than restarting the conversation from scratch. A clear record avoids two common problems: repeating a dose review that's already been done, or losing track of how long you've actually been on your current strength, which affects how soon the next increase is considered appropriate.

How NewGen Pharmacy can help

Unsure why your dose has or hasn't changed? Does something about a recent increase not feel right? Our team can help.

Report any suspected side effect at any dose through the MHRA Yellow Card Scheme, alongside telling your prescriber directly. Haven't had a dose review in a while? You can arrange one through your weight management consultation.

Frequently Asked Questions

Do I have to reach 25mg eventually?

No. Many people stay on a lower dose because it's already giving them the result they need.

How often does the dose increase?

On a schedule set by your prescriber, generally only once the current dose is well tolerated for several weeks.

Can I ask to go up faster?

Your prescriber decides based on tolerance, not preference. Going faster raises the risk of side effects without extra benefit.

What if I want to go back down a dose?

Discuss it with your prescriber rather than deciding alone.

Does a higher dose mean faster weight loss?

Generally a stronger appetite effect, but not a guarantee of faster results. Response varies by person.

Is 1.5mg not really working?

No. It's doing exactly what a starting dose is meant to do. Effect building gradually is expected.

What happens if side effects come back after an increase?

It's common for mild side effects, especially nausea, to briefly reappear after each step up before settling again.

Can I skip a strength?

No. The strengths are designed to be worked through in order.

Can my dose be reduced later, not just increased?

Yes. Dose changes can go in either direction if your prescriber decides that's right for you.

What happens if I miss a dose-review appointment?

Rearrange it as soon as you can rather than continuing to increase your dose without a review.

What should I do if I forget a dose?

Check your patient information leaflet for the specific window, and contact your prescriber if you're at all unsure.

Can I stay on my current strength if I'm planning a pregnancy?

No. Speak to your prescriber straight away, since Wegovy isn't suitable during pregnancy at any strength.

Compliance note

This article provides general health information only and does not replace medical advice, diagnosis, or treatment. Wegovy tablets are a prescription-only medicine. A qualified prescriber makes dosing decisions based on individual assessment.

Author & Content Writer: Dr. Naeem Aslam