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Starting the Wegovy Pill: How to Take It and What to Expect in the First Weeks

Picture of Dr. Hecham Harb

Dr. Hecham Harb

Consultant Endocrinologist & Medical Director

Starting the Wegovy pill: your first weeks on treatment

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Quick answer

Take the Wegovy pill once a day on an empty stomach, with up to half a cup of plain water. Wait at least 30 minutes before eating, drinking or taking other medications. Treatment starts at 1.5 mg for at least a month, while semaglutide builds to a steady level over around four to five weeks. Some patients start to see weight changes from around week two, while others take longer to respond.

Key takeaways
  • The UK product information for the Wegovy pill recommends taking it on an empty stomach, after a fasting period of at least eight hours.
  • Food, a large volume of water or a wait of less than 30 minutes can reduce how much semaglutide the body absorbs from each tablet.
  • The US prescribing information gives a peak level around one hour after each tablet and a half-life of around one week.
  • Treatment starts at 1.5 mg once daily, and each dose step lasts at least one month before your endocrinologist considers an increase.
  • The UK product information reports digestive side effects mainly during dose increases, and describes most as mild to moderate and short-lived.
  • The Wegovy pill’s 64-week OASIS 4 clinical trial in adults with obesity or overweight recorded an average weight loss of around 17%.
  • The Emirates Drug Establishment approved the Wegovy pill for weight management in adults on 1 June 2026.
In one line: The Wegovy pill is taken with plain water only, and coffee, tea or juice should follow at least 30 minutes later.

01  Introduction

The Wegovy pill is a once-daily semaglutide tablet for weight management, approved by the Emirates Drug Establishment and available in the UAE on prescription.

The UK product information for the Wegovy pill and the US prescribing information set out the following routine:

  • After a fasting period of at least eight hours (in the morning, on the US label)
  • One tablet, swallowed whole, without splitting, crushing or chewing
  • Up to half a cup (120 mL) of plain water
  • Nothing else by mouth for at least 30 minutes
  • The same routine every day
 

You should not take more than one tablet a day.

Food and drink can reduce how much semaglutide your body absorbs from the tablet. The UK product information estimates that around 1% to 2% of the semaglutide in a tablet reaches the bloodstream. It reports lower absorption when the tablet is taken with food or with a large volume of water.

The product information also states that waiting less than 30 minutes before eating, drinking or taking other medications reduces absorption. In its studies, longer fasting before and after the dose was associated with higher absorption.

The tablet contains an ingredient called salcaprozate sodium (SNAC), which Novo Nordisk, the manufacturer, describes as helping semaglutide to be absorbed in the stomach. Foundayo, the other weight management tablet in the UAE, can be taken with or without food, as our guide to your first month on Foundayo explains.

The Wegovy prescribing information in the US reports that semaglutide reaches its highest level in the blood around one hour after each tablet. With a half-life of around one week, semaglutide builds up over the first weeks of daily tablets. The UK product information states that a steady level is reached after four to five weeks of daily use.

Our guide on how long weight loss injections take to work describes the timeline for the weekly injections.

In week one, you will take 1.5 mg once a day. This is a starting dose, intended to help your body adjust to the medication.

The UK product information lists nausea, vomiting, diarrhoea and constipation among the very common side effects. Indigestion, abdominal pain, headache and tiredness are also listed as very common. Not every patient experiences them. Constipation can last longer than the other digestive effects.

Side effects such as nausea or constipation can be particularly pronounced in the first few days at a new dose. They often improve as your body adjusts, although some symptoms last longer. If you experience nausea or constipation, your endocrinologist can adjust the pace of dose increases and, where needed, prescribe medication to help manage these side effects. Our page on the side effects of the Wegovy pill covers each one in detail.

Early changes on the scale can partly reflect changes in body water, rather than fat loss alone. Early weight loss also does not necessarily continue at the same rate.

At your first monthly follow-up, your endocrinologist will review your weight, any side effects and your progress, and discuss the next step with you.

At Endocare, body composition analysis is included free of charge at every consultation. Body composition analysis estimates body fat, muscle mass and body water. Repeated measurements help your endocrinologist understand how your body is changing beyond the number on the scale.

Start with protein. Our coaches focus on including a good source of protein at each meal, then look at portion sizes and drinks, which can contribute significantly to daily calorie intake. Our guide to what to eat on Wegovy has practical examples.

If you and your endocrinologist decide to step up, the next dose is 4 mg, after at least one month on 1.5 mg. Later steps are 9 mg and then 25 mg, the maintenance dose, with at least one month at each step.

The US prescribing information sets day 91 as the earliest point for the 25 mg dose. If a step is not well tolerated, your endocrinologist may keep you at your current dose for longer, as the UK product information allows.

The dose is reviewed with your endocrinologist at each monthly follow-up. Our Wegovy dosage guide explains each step and what to do if you miss a dose.

In OASIS 4, a Phase 3 clinical trial in adults with obesity or overweight, patients taking the Wegovy pill lost an average of around 17% of their total body weight over 64 weeks. Participants in that trial reached 25 mg over 12 weeks and then stayed at that dose for 52 weeks. Around one in three lost 20% or more of their body weight.

At Endocare, our endocrinologists typically observe weight loss of three to four kilos a month in patients on a medically supervised programme. Individual results vary from patient to patient.

We recommend taking your other morning tablets after the 30-minute wait. In a study reported in the UK product information, taking five other tablets at the same time as the Wegovy pill reduced the amount of semaglutide absorbed by around a third.

If you take levothyroxine for an underactive thyroid, tell your endocrinologist. The product information reports that the Wegovy pill increased exposure to levothyroxine by 33%, so your endocrinologist may check your thyroid levels. It found no clinically relevant change in the levels of a combined oral contraceptive pill.

If you take insulin or a sulfonylurea for diabetes, the risk of low blood sugar can rise. Your endocrinologist may adjust the dose of those medications.

Seek medical advice immediately if you have severe stomach pain that spreads to your back and does not go away, as this can be a sign of pancreatitis. Seek medical advice immediately if you keep vomiting or cannot keep fluids down, as this can lead to dehydration. Signs of a serious allergic reaction, such as swelling of the face or difficulty breathing, also need urgent medical care.

The Wegovy pill should not be used during pregnancy or while breastfeeding. The UK Medicines and Healthcare products Regulatory Agency (MHRA) advises stopping semaglutide at least two months before trying to become pregnant. Endocare’s doctors are always available to support patients with advice.

Yes, once 30 minutes have passed since the tablet. Coffee, tea or juice taken earlier can reduce how much semaglutide your body absorbs.

Skip the missed dose and take your next tablet the following day, as the product information advises. Do not take two tablets to make up for it. If you miss several doses, contact your endocrinologist before you restart.

The US prescribing information asks for the Wegovy pill to be taken in the morning, on an empty stomach, while the UK product information does not set a time of day. If a morning routine is difficult for you, we recommend discussing it with your endocrinologist.

Some patients take longer to respond, and the first month is spent on the 1.5 mg starting dose. If your weight is not changing despite a consistent plan, it may be worth reviewing both the plan and whether any medical factors could be contributing.

The results are broadly similar, although they come from separate trials. In STEP 1, a Phase 3 clinical trial in adults with obesity or overweight, patients taking the Wegovy injection at 2.4 mg lost an average of around 15% of their total body weight over 68 weeks. The Wegovy pill’s own Phase 3 trial, OASIS 4, recorded around 17% over 64 weeks. Our page on the Wegovy injection explains the weekly option.

It may be possible, after a discussion with your endocrinologist. The UK product information allows a switch from the 2.4 mg weekly injection to the 25 mg tablet, starting one week after the last injection. It notes that the effect of switching is harder to predict, because absorption from the tablet varies more. Our article on switching from an injection to a pill explains what to consider.

Start the Wegovy pill with a medical assessment

Patients should not decide by themselves to start a GLP-1 medication. A doctor’s review is critical to ensure the treatment is safe and appropriate for the individual. The Wegovy pill is approved for adults.

At our Dubai clinic, your endocrinologist will assess you, review your blood tests and discuss whether the Wegovy pill is appropriate for you. Our page on the Wegovy pill price sets out the cost of each dose. You can book a weight loss consultation on +971 4 285 3885 or send us a message on WhatsApp.

Book Your Consultation

  • Specialist consultation
  • Personalized Coaching
  • Body Composition Analysis
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