Weight Loss

Ozempic: A Complete Overview

This prescription-only medication should be self-injected once per week to balance blood sugar levels and reduce body weight. Use this page to ensure Ozempic is an appropriate treatment for you.

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Madeleine Hawkes Madeleine

Medically reviewed by Madeleine Hawkes

PGCert Obesity & Weight Management

Last Updated March 18, 2024
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Each pack contains 4 weekly doses.


Buy Ozempic online UK - what you need to know before starting treatment

  • Ozempic is a once-weekly self-injected medication to lower blood sugar and cause weight loss.

    Ozempic’s active ingredient is semaglutide, which mimics a naturally occurring hormone to suppress and regulate appetite, allowing patients to lose weight.

  • Ozempic’s active ingredient is semaglutide.

    The purpose of semaglutide is to induce satiety; making you feel full.

    Semaglutide increases the period of satiety after eating, meaning your appetite is suppressed. As a result, your digestive system works slower, allowing gastric emptying to occur considerably later than routine.

    In terms of lowering blood glucose, semaglutide targets the pancreas and promotes insulin secretion, making Ozempic an effective treatment for type 2 diabetes.

  • Yes, Ozempic does cause patients to lose weight.

    While not FDA approved as a weight loss medication, various trials have demonstrated that, when used alongside a calorie-reduced and healthy diet as well as routine exercise, you could lose up to 20% of your total weight.

  • It’s essential to note that some medical treatments are ineffective in certain patients.

    However, if the medication is effective, clinical studies have proven that a large number of people taking the medication can lose 10% or more of their starting body weight.

    The vast majority of people taking this medication can expect a minimum of losing 5% of their beginning weight after diligent and routine dosage.

Weight Loss Treatment Reviews

This is a genuine review from my experience.Ordered Ozempic 0.25mg, got my 20% off as says on website.It was easy to place my order after done online medical assessments.


The online session I had with Dawn was educational. Dawn talked me through food groups, what foods were beneficial and which to avoid. She also talked me through the stages of taking Ozempic and the benefits.

Jacqui Waterhouse

Manual have been amazing from the very start. Even before I got the medication I received an email with a video demo of how to use it and possible side effects. I love how they provide coaching with a dietitian every 2 weeks.


Fantastic support , rapid delivery of product for weight loss . Clear guidance of how to use the product ozempic 4lbs lost in the first week

Natasha Stewart

Manual have been fully supportive, with great advice and my own weight loss counsellor to keep me going while on Ozempic and I lost 10lb in the first month!

Alexandra McCabe

The treatment plan I'm on for ozempic is great, one week in and I'm noticing a difference and the support network from manual is great

David Lennox

I am very glad I made the choice to use Ozempic and glad also I chose Manual as my provider.


Ozempic vs alternative weight loss medications

Losing weight can be challenging for many patients through diet and exercise alone. Weight loss medications, as a result, are a safe and effective tool to maximise your chances of reducing body weight. Ozempic – providing you fit the criteria – has proven to produce weight loss results when taken in tandem with exercise and a healthy diet.

ACTIVE INGREDIENTSemaglutide (Ozempic & Wegovy)Liraglutide (Saxenda)Setmelanotide (Imcivree)Orlistat (Xenical, Alli)Bupropion-naltrexone (Contrave)Phentermine-topiramate (Qsymia)
Taken once weekly✔️Take dailyTake daily❌ Taken 3 per dailyTaken twice per dayTaken daily
Steady dosage path✔️✔️✔️✔️✔️
Prescription Only✔️✔️✔️✔️✔️✔️
Licensed for weight loss✔️✔️✔️✔️✔️✔️
Licensed for diabetes management✔️
Suitable for long term use✔️✔️Two weeks only✔️Four weeks only✔️
Available on the NHS✔️✔️✔️
Injection Form✔️✔️✔️OralOralOral

How does Ozempic work?

For weight loss

Clinical studies have proven that Ozempic is an effective weight loss medication alongside a management tool for type 2 diabetes.

Clinical study

More participants in the semaglutide group than in the placebo group achieved weight reductions of 5% of more. 50.5% of those in the semaglutide group lost 15% or more of their overall body weight by week 68.
– Once-Weekly Semaglutide in Adults with Overweight or Obesity (The New England Journal of Medicine.)

For lowering blood glucose levels

Does Ozempic actually control blood sugar?

Ozempic was conceived as a medication for adults with type 2 diabetes.

After injecting, the medication lowers blood sugar levels and stimulates the production of more insulin.

This medication lowers blood sugar by:

  • Working with the pancreas to produce more insulin when blood sugar levels are too high
  • Preventing the liver from producing and releasing too much glucose
  • Reducing the speed of digestion and allowing the stomach to store food for longer

Is Ozempic good for the heart?

When taken by overweight adults or adults with type 2 diabetes, clinical trials have proven that this medication significantly reduces the risk of major cardiovascular events. These include heart disease, heart attack, and – in extreme cases – death.

Who can use Ozempic for weight loss?

To have access to this prescription medication, you must be eligible:

  • Your AC1 level cannot be controlled with other medications or interventions
  • You are at risk of developing or currently have a diagnosis of cardiovascular disease
  • You have heart disease or failure or kidney disease

Who should not use this weight loss medication?

You should not use this medication if:

  • You are pregnant or breastfeeding
  • You are trying to conceive
  • You have personal or family history of medullary thyroid carcinoma (MTC)
  • You have personal or family history of Multiple Endocrine Neoplasia Syndrome type 2 (MEN2)
This is a prescription-only medication. You cannot purchase this medication over the counter.

Ozempic: dosage and administration

When starting Ozempic treatment, it may seem daunting to remember the correct starting dose.

As a result, Manual has created a six-step guide instructing patients how to self-inject Ozempic.

Before administering Ozempic, you must first understand the two key doses:

The beginner dose

When you first start taking this medication, you will be taking a beginner dose.
The beginner dose is 0.25mg for the first 4 weeks of treatment. Following the beginner dose, you will then increase your dose to reflect your treatment plan.

This is a prescription-only medication. You cannot purchase this medication over the counter.

The maintenance dose

The maintenance dose is the maximum dose you can take.

For Ozempic, the maintenance (or maximum) dose you should take is 2 mg.

This is the dose you work up to over the course of your treatment plan, increasing from a low dose to your maintenance dose toward the end of treatment.

What happens if I miss a dose of Ozempic?

The missed dose is remembered within 5 days:

If you forget to administer your dose, take the missed dose as soon as you remember so long as you are within 5 days of the missed dose.

The missed dose is remembered after 5 days:

If 5 days or more have passed since your missed dose, skip it and continue with your dosing schedule, administering your next scheduled dose as planned.

Where can I inject Ozempic? Injectable areas:

Upper arms

Administration: how to take Ozempic in 6 steps

This medication is self-injected at home on a weekly basis.

Self-administering Ozempic requires diligent attention and should be completed in a safe and clean environment.



Wash your hands with soap and water before preparing your pen.

The solution inside the pen should be colourless and clear.

If the solution is cloudy or you can see various particles, discard of it and speak to your doctor.

Attach the needle by discarding both needle caps safely.

Never reuse or share needles with others.

Only use this medication if the solution is clear and colourless.


You now need to check the flow on your new Ozempic pen.

Dial to the flow check symbol.

You will need to complete this step each time you use a new Ozempic pen. Hold your pen horizontally with the needle pointing upwards.

Press the dose button until the pointer is lined up with “0 mg”.

At this point, you should notice a drop of solution will appear at the tip of your needle.

If solution does not appear at the needle tip, repeat these steps up to 6 times.If the solution still does not appear, do not use the pen and contact your healthcare provider.


After you have completed the “check” stage, you should select your appropriate dose.

Dial your pen to the dose you have been prescribed.

If the wrong dose has been selected, you are able to turn your dose selector backwards and forwards until you reach the appropriate dose.

Do not inject more than your prescribed dose. Always follow your healthcare professional’s instructions.


Before injecting, use the provided alcohol wipe to disinfect and clean the injection site.

Allow a small amount of time to pass to ensure the area is dry.

Then, insert the needle into the injection site.

You can inject into your stomach, upper arms or thighs. Make sure to rotate the injection site with each dose to avoid skin reactions.

Press and hold the middle of the dose button to administer the solution until the pointer is aligned with “0 mg.”

At this point, keep holding the dose button for an additional 6 seconds to ensure the dose is fully administered.

Then, gently remove the injection.

Do not release the dose button until the needle has been removed from your skin.

Only inject into the areas mentioned in the patient information leaflet (stomach, thigh, and upper arm).


After you have self-injected the appropriate dose, you will need to discard your needle safely. Carefully remove your needle from the pen and dispose of it.

Do not throw it in your household bin.

Instead, keep them somewhere out of reach of children and animals.

Do not throw your used needles away in your household rubbish bin.Keep them out of reach of children and pets.


You should store your pen without attaching the needles.

After every use, be sure to place the pen’s cap back on. This protects the medication from light.

Keep your Ozempic pen on-hand and with you at all times.

Do not leave your pen places where it could get too hot or too cold as this may cause the solution to become cloudy and unusable.

The medication’s manufacturer state that you should store Ozempic for 6 weeks at room temperature (so long as this is not above 30˚C) or in a refrigerator cooling element (2˚C to 8˚C.)

You should not freeze this medication or store it in direct sunlight. Do not store this medication in your car glove compartment.

Ensure this medication is stored somewhere others cannot reach it, particularly children and pets.

Store this medication somewhere it cannot get too hot or too cold to avoid unusable solution.

Rotate the injection site with each once weekly injection to avoid skin reactions and soreness.

Side effects of Ozempic and precautions

Before selecting Ozempic as to treat weight loss and type 2 diabetes, you should be aware of potential side effects and precautions.

Most common side effects

The most common side effects of Ozempic are:

  • Severe nausea and vomiting
  • Diarrhoea or constipation
  • Headaches
  • Abdominal pain

Severe side effects of Ozempic

Serious side effects of Ozempic may include:

  • Pancreatitis (inflammation of the pancreas)
  • Hypoglycemia (low blood sugar)
  • Severe allergic reactions
  • Kidney failure and other kidney problems
  • Gallbladder problems
  • Changes in vision

What to do if you experience severe side effects

  • If you experience severe and sharp stomach pain that won’t go away, stop using this medication and contact your healthcare providers immediately.

    You may experience this stomach pain with or without vomiting, and this pain may be also felt in your back.

  • If you notice symptoms of an allergic reaction, stop using the medication and get emergency medical help.

    These symptoms may include swelling in your face, throat, tongue, lips, and/or tongue, finding it tricky to breathe or swallow, having a severe and itchy rash, fainting or feeling lightheaded, and/or an increased heart rate.

  • For patients with kidney problems, the more common side effects of diarrhea and vomiting can lead to dehydration. This dehydration can worsen kidney conditions.

    Whenever you are using this medication, you must be sure to drink plenty of water to avoid dehydration.

  • Clinical trials have proven that gallbladder problems have occurred in patients who take Semaglutide.

    If you notice symptoms like fever, jaundice (yellowing of your eyes or skin), clay-coloured stools, or experiencing pain in your upper stomach, tell your healthcare provider straight away for further guidance and treatment.

  • When using Ozempic in tandem with other medications that lower blood sugar (eg: insulin or sulfonylurea,) you may be at a higher risk of developing hypoglycemia.

    Symptoms of hypoglycemia include feeling dizzy or lightheaded, experiencing mood swings, anxiety, and irritability, fevers and sweats, slurred speech, heart palpitations, headaches, shakiness, and/or generally feeling weak.

    You should stop taking this medication if you notice these symptoms and speak to your doctor immediately.

  • If you are experiencing any changes in your vision while taking this medication, speak to your healthcare providers immediately.

    Clinical trials that took place in June 2020 demonstrated that the medication can cause vision changes, like diabetic eye disease (diabetic retinopathy), blurry vision, and macular complications.

Does Ozempic cause thyroid cancer or thyroid tumors?

During clinical trials when testing whether Semaglutide caused thyroid tumors or a type of thyroid cancer called medullary thyroid cancer (carcinoma) on rodents, parallels were drawn between the ingredients and thyroid cancers.

It’s essential to highlight that this clinical trial tested on rodents rather than humans, making the link between semaglutide and a thyroid tumor unclear.

It is not yet known whether Ozempic causes thyroid tumors or medullary thyroid carcinoma (MTC) in people.

With that in mind, you should not use this medication if you have family or personal history of MTC.

You should also refrain from using this medication if you have an endocrine system condition named Multiple Endocrine Neoplasia Syndrome Type 2 (MEN2).

If you are unsure or concerned, speak to a doctor or pharmacist for further guidance.

Ozempic and interactions with other drugs

Ozempic treatment and oral medications interaction

Ozempic works to lessen the pace of the digestion process. As a result, oral medication (tablets and medicines you swallow) may be affected in terms of how they are absorbed into your body. It is important to tell your healthcare provider if you are taking any of the following other medicines:

→ Warfarin (Jantoven)

→ Phenytoin (Dilantin)

→ Digoxin (Lanoxin)

Ozempic and insulin interaction

If you have type 2 diabetes, your healthcare provider may recommend that you use insulin alongside this medication to manage blood glucose levels.

Ozempic might interact with the following:

→ Insulin glargine (Lantus, Basaglar)

→ Insulin lispro (Humalog)

→ Insulin degludec (Tresiba)

It’s critical to keep your healthcare provider up to date.

Taking Ozempic with insulin without proper management could lead to low blood sugar (hypoglycemia) which can, in extreme conditions, be life threatening.

Can I drink alcohol while using Ozempic?

You can drink alcohol while taking Ozempic. You should be cautious and responsible with your alcohol intake.

Ozempic can cause dehydration which is worsened with alcohol.

If consuming alcohol, do so in moderation and ensure you are also drinking plenty of non-alcoholic fluids (preferably water.)

It’s also worth noting that alcohol can lead to excess weight gain. Alongside inducing high blood sugar, alcohol will counteract with your efforts of weight loss.

Ozempic with supplements and vitamins

Before you are provided with a prescription for Ozempic, your healthcare provider will require an up-to-date list of any medications you are taking (and have taken in the past with their results and side effects.)

This includes any herbal vitamins or supplements.

Discussing this will allow your medical care team to reduce unwanted side effects and tailor your treatment plan to you.

Ozempic comparisons and alternatives

Ozempic is an effective weight loss medication that uses semaglutide to suppress appetite and manage blood sugar levels.

Should Ozempic be ineffective or unsuitable for you as a patient, there are alternative medications.

ozempic shot

Ozempic vs Wegovy

Both Ozempic and Wegovy contain the same active ingredient – semaglutide – and they are, in essence, the same drug.

The only differences between them is that:

  • Wegovy is available in higher doses
  • Wegovy is FDA approved for weight loss, while Ozempic is FDA approved exclusively as a treatment for type 2 diabetes.

Learn About Wegovy

Ozempic vs Saxenda

In the debate between Ozempic vs Saxenda for weight loss, there are only minor differences.

Clinical trials have proven that Ozempic is more effective for managing high blood sugar and for weight loss than Saxenda.

  • Ozempic needs to be injected only once per week, while Saxenda requires daily administration.
  • Saxenda, however, is licensed for weight loss in the UK while Ozempic is not.

Ozempic vs Rybelsius

Ozempic and Rybelsius are made by the same manufacturer: Novo Nordisk.

Both contain the same active ingredient of semaglutide, and have proven to be effective for weight loss.

Rybelsius is the oral formation of Ozempic. Similarly to Ozempic, it is designed to increase in dosage throughout time. Rybelsius needs to be taken daily while Ozempic is self-injected once per week.

Weight loss pills vs injections

Weight loss medications are available in both injection and needle form.

For some, an oral solution to weight loss is more appropriate; particularly for those who struggle with needles.

For others, a once-weekly injection is a more straightforward implementation into every day life.


Weight loss injections

Weight loss injections like Ozempic and Wegovy are best for you if:

💉 You forget to take your daily oral medication

Self-injecting only once weekly means you don’t have to worry about forgetting to take your oral medication.

💉 You are not afraid of needles

Phobias or anxiety driven by needles could make Ozempic an unsuitable medication. Without this fear, however, the adjustment may be more manageable.

💉 You want to see results quicker

When comparing the speed in which medications take effect, injections are absorbed into the body faster. You should see more rapid results with a weight loss injection like Ozempic, in contrast to its pill-based counterparts.

Manual GLP1

Weight loss pills

Weight loss pills (oral medications) may be a better fit for you if:

💊You are anxious or phobic of needles

If you are afraid or phobic of needles to the point where it hinders your mental health with anxiety, taking weight loss pills may be a more suitable treatment method.

💊Daily routine is more memorable than once weekly

While some patients prefer the ability to take only one dose per week, others find that incorporating medication daily makes it easier to remember to take it and helps to reduce the likelihood of a missed dose.

💊Your lifestyle makes it challenging to self-inject on a routine basis

It’s important to take your Ozempic injection on the same day every week. If this will be challenging due to lifestyle, an oral alternative may be better suited to you.

If you are struggling to decide between taking pills or administering injections, you should speak with your doctor or pharmacist for further guidance.

Manual.co Rybelsus
weight loss medications

Buy Ozempic pens

Ozempic is a prescription-only medication. You will need to obtain a valid prescription from your doctor or healthcare provider.

After this, you are free to purchase Ozempic for use.

  • You can purchase Ozempic pens through Manual with a valid prescription.

    You can get a valid prescription – provided you are eligible and suitable for Ozempic – through one of our certified medical experts.

    You will first need to take an assessment to ensure you meet this medication’s suitability criteria.

    {Start My Assessment}

  • As most patients require a private prescription and find it difficult to get Ozempic on the NHS, the private cost of the medication differs. Here at Manual, you can purchase Ozempic with a prescription for {£}.

  • It is possible to get Ozempic on the NHS. However, the NHS use strict criteria when prescribing Ozempic. It is likely that your treatment will have a delayed start should you rely on an NHS prescription.

  • In order to get Ozempic on the NHS, you will need to meet the following criteria:

    ✅ Have type 2 diabetes that you cannot control

    ✅ Metformin is not a possible treatment for you

    ✅ Your BMI is 30 or above

    ✅ You have no personal or family history of thyroid cancer

    ✅ You have no family or personal history of pancreatitis or pancreatic cancer

Frequently asked questions

  • If you are going on holiday, you will need to take your medication with you in order to manage blood glucose levels.

    To do so, make sure you’re storing your medication in a separate liquids bag and pack it in your carry-on.

    If possible – particularly if you’re going on a long-haul flight, try to bring a portable medical cooling device with you.

    Delays are part of travelling, so it’s best to always bring a little bit more than you need. An extra dose or two provides peace of mind should cancellations or delays happen.

  • Try to avoid foods that are high in fat, sodium or sugar.

    While you are free to consume alcohol, do so safely and in moderation. Avoid fizzy drinks and excessive caffeine.

    You should aim for a healthy diet to lose weight effectively.

  • You should not take Ozempic if you are pregnant or planning to become pregnant. The FDA have stated that there is insufficient data available to guarantee that semaglutide will not hinder the growth and wellbeing of your baby.

  • This medication does not cause hair loss. Clinical studies examined whether hair loss was a side effect and results proved the theory to be negative.

  • While you are using this medication, you can keep it in a fridge, away from the refrigerator cooling element, for six weeks. Failing that, store it at room temperature, providing this does not exceed 30˚C.

  • While you cannot purchase Ozempic as a pill, there is a oral version, Rybelsus, that contains the same active ingredient (semaglutide.)

    Rybelsus is also FDA approved for Type 2 diabetes and made by the same manufacturer (Novo Nordisk.)

  • It’s highly unlikely that taking Ozempic will interfere with your ability to drive and operate machines.

    That said, it’s important to remember that, if you are using this medication with others (such as insulin) you may experience low blood sugar which could cause dizziness and an inability to concentrate.

    Always make sure you know how you feel on the medication prior to operating machines or driving.

  • You can take this medication with or without food. Being that it is injected only once per week, it does not matter whether you have a full or empty stomach when injecting.

  • While it could take up to 8 weeks to see the full effects, Ozempic starts working after your first dose by lowering blood sugar levels.

    This is a long-acting medication.

  • Ozempic contains the following ingredients:

    • Semaglutide (active and medicinal ingredient)
    • Disodium phosphate dihydrate
    • Propylene glycol
    • Phenol
    • Water

  • t’s important to note that this medication is not suitable or effective for everyone.

    While studies have proven that around one third of people lost around 10% of their weight along with a calorie-controlled diet and exercise, the impact is not guaranteed for everyone.

    If you are doubting its impact after diligent dosing along with implementing lifestyle changes, it’s best to speak with your doctor or pharmacist. They will perform further tests to ensure the medication is working, albeit slowly.

    If this medication is not effective, they may introduce weight loss alternatives.

  • Interestingly, there have been numerous claims that this medication helps to curb addictions such as smoking and drinking, and even nail biting.

    This is currently being examined for further understanding.

Our weight loss programme

Ozempic can be given as part of our weight loss programmes after taking a medical questionnaire and assessing eligibility.

  • Online prescription upon eligibility
  • Dedicated coach and unlimited support
  • Weight loss medication delivered to you