Contrave vs Ozempic: Your UK Weight Loss Guide
Trying to lose weight can sometimes feel like an uphill battle. If diet and exercise have not given you the results you want, you might be looking into weight loss medications. Two of the most talked about options right now are Ozempic and Contrave.
If you live in the UK, things can get a little confusing with the names. Here, Contrave is known and prescribed under the brand name Mysimba. Ozempic is famous worldwide, but it is technically a diabetes medication. Its exact twin, made for weight loss, is called Wegovy.
This guide will break down exactly how these medications work, how much they cost, and what side effects you might experience. By the end of this page, you will have a much clearer idea of which treatment might suit your personal goals.
Understanding the Basics of These Medications
Before making any decisions, it helps to understand what these drugs actually are. They are not magic fixes, but they are very helpful tools for people struggling with obesity.
What is Ozempic (and Wegovy)?
Ozempic and Wegovy both contain the exact same active ingredient. This ingredient is called semaglutide. Ozempic was created to help people with type 2 diabetes manage their blood sugar levels. Doctors noticed that patients taking it were losing a lot of weight. Because of this, the makers created Wegovy, which is specifically licensed for weight management.
You take this medication as a once-weekly injection. If you hate needles, this might sound scary, but the pen is very simple to use, and the needle is tiny.
What is Contrave (or Mysimba)?
Contrave, known as Mysimba in the UK, is entirely different. It does not come in an injection pen. Instead, it is a tablet you swallow every day.
Mysimba (Contrave) contains two active ingredients: naltrexone and bupropion. Doctors usually use these ingredients to help treat addictions or depression. When combined, they have a powerful effect on the reward centre in your brain. This makes it a great choice for people who struggle with emotional eating or severe food cravings.
My Thoughts on Contrave and Ozempic
Having written about weight loss for many years and spoken to countless readers trying different approaches, I’ve noticed that choosing a medication is rarely just about which one leads to the biggest weight loss.
For some people, taking a daily tablet feels much easier than injecting a medication every week. For others, reducing food noise and appetite is the main priority, even if it means learning how to use an injection pen.
I think it’s also important to remember that no medication does all the work for you. Whether someone chooses Contrave, Ozempic or another treatment, long-term success still depends on building sustainable habits around food, activity and overall health.
The “best” medication is often the one that suits your medical history, lifestyle, budget and personal preferences rather than simply the one with the biggest headline weight-loss results.
| Feature | Contrave (Mysimba) | Ozempic |
|---|---|---|
| How taken | Tablet | Injection |
| Frequency | Daily | Weekly |
| Typical weight loss | Lower | Higher |
| Appetite suppression | Moderate | Strong |
| Food noise | Can help | Often significant |
| Common side effects | Headaches, nausea, dry mouth | Nausea, vomiting, constipation |
| UK availability | Available | Primarily for diabetes in UK |
How Do They Actually Work in Your Body?
The way your body reacts to these treatments is completely different. One works mostly on your gut hormones, while the other works directly on your brain.
The Science Behind Semaglutide
Semaglutide acts like a natural hormone in your body called GLP-1. Your gut usually releases this hormone after you eat a meal. It tells your brain that you are full.
When you inject Wegovy or Ozempic, it slows down how quickly your stomach empties. Because your food stays in your stomach for longer, you feel much fuller throughout the day. You naturally eat less food without feeling like you are starving.
How Naltrexone and Bupropion Help
Mysimba (Contrave) takes a mental approach to weight loss. Many of us eat when we are bored, sad, or stressed. We reach for sugary or fatty foods because they give us a quick hit of pleasure.
The two ingredients in Mysimba work together to block those cravings. Bupropion helps to increase your dopamine levels, which makes you feel happier and more satisfied. Naltrexone blocks the opioid receptors in the brain, reducing the joy you normally get from eating junk food. If you find yourself constantly snacking when you are not physically hungry, this medication targets that exact problem.
Weight Loss Results: What Can You Expect?
If you are going to spend money on a medical treatment, you want to know that it works. Both of these drugs have been through massive clinical trials. However, the results do vary.
People taking Wegovy tend to see larger drops on the scales. In clinical trials, patients taking the highest dose of Wegovy lost an average of around 15% of their total body weight over a year. Many people lost even more than that.
Patients taking Mysimba (Contrave) tend to see slightly smaller results. On average, users lose between 5% and 10% of their body weight over a year. While this is less than Wegovy, losing even 5% of your body weight can massively improve your blood pressure, cholesterol, and overall health.
You can read more about realistic weight loss expectations in this guide about the truth of weight loss. It is really important to remember that rapid weight loss is often just water weight at first.
Which Leads to More Weight Loss?
One of the main reasons people compare Contrave and Ozempic is because they want to know which medication is likely to produce the best results.
In general, Ozempic tends to result in greater average weight loss than Contrave. Contrave (naltrexone and bupropion) typically helps people lose around 5% to 9% of their body weight when combined with lifestyle changes, while semaglutide medications often achieve significantly higher average weight loss results in clinical studies.
However, average results don’t tell the whole story. Some people respond extremely well to Contrave, while others struggle with side effects or find it less effective. Similarly, not everyone achieves dramatic weight loss on Ozempic.
The most effective medication for you will depend on factors such as your health history, eating habits, appetite levels and how well you tolerate the treatment.
The Cost of Weight Loss Treatments in the UK
Cost is a huge factor for most people. These medications are not cheap, and getting them on the NHS can be very difficult.
If you try to get Wegovy privately, you should expect to pay between £150 and over £300 per month. The price usually goes up as your dose increases. You will also need to pay for online consultations or private clinic fees.
Mysimba (Contrave) is usually the cheaper option. A private prescription for Mysimba will generally cost you between £90 and £120 per month.
The NHS does offer weight management services. You can read their official guidance on the NHS website for obesity treatment. However, the waiting lists are notoriously long, and you must meet strict criteria to qualify.
Side Effects You Need to Know About
Every medication comes with potential side effects. Because these two drugs work differently, their side effects are also very different.
With Wegovy and Ozempic, most side effects occur in your digestive system. As your stomach empties much more slowly, you might feel quite sick. Common issues include nausea, vomiting, constipation, and acid reflux. These feelings usually fade as your body gets used to the drug.
Mysimba has a different set of risks. Because it works on the brain, it can cause headaches, dizziness, insomnia, and dry mouth. Some people also notice an increase in their blood pressure or feelings of anxiety. If you have a history of seizures or severe mental health conditions, doctors will usually tell you to avoid Mysimba (Contrave) completely.
Which Has More Side Effects?
Both medications can cause side effects, although the type of side effects tends to differ.
With Ozempic, the most commonly reported side effects are digestive and include nausea, vomiting, diarrhoea, constipation and stomach discomfort. These symptoms are often most noticeable when increasing the dose.
Contrave can also cause nausea, but some people experience headaches, dizziness, dry mouth, sleep disturbances and mood-related effects. Because Contrave contains bupropion, it carries important warnings regarding mental health and suicidal thoughts in some individuals.
The severity of side effects varies significantly from person to person, which is why medical supervision is essential.
Which Option is Right for You?
Choosing between these two options comes down to your personal habits and your health history.
You might prefer Mysimba (Contrave) if:
- You absolutely hate needles and want a daily tablet.
- You are a comfort eater who constantly craves sweet treats.
- You want a slightly cheaper private option.
You might prefer Wegovy or Ozempic if:
- You want the strongest medication available for weight loss.
- You do not mind a weekly injection.
- You have conditions like high blood pressure or diabetes that might benefit from greater weight loss.
Always speak to a qualified doctor or pharmacist before making a choice. They will look at your medical records and help keep you safe.
Who Might Prefer Contrave?
Contrave may appeal to people who:
- Prefer tablets rather than injections
- Experience significant cravings or emotional eating
- Are unable to access GLP-1 medications
- Have concerns about using injectable medications
- Want a treatment that targets appetite and reward pathways
This does not mean Contrave is automatically the best choice. Suitability depends on your medical history, other medications and advice from your healthcare professional.
Who Might Prefer Ozempic?
Ozempic may appeal to people who:
- Are comfortable with a weekly injection
- Want a medication that significantly reduces appetite
- Have struggled with hunger on other plans
- Need support with blood sugar management as well as weight loss
- Are looking for a treatment associated with greater average weight loss
As with all prescription medications, a healthcare professional will need to assess whether it is appropriate and safe for you.
Contrave vs Ozempic for Food Noise
Many people describe “food noise” as constant thoughts about food, cravings or feeling preoccupied with eating throughout the day.
This is one area where Ozempic often receives a lot of attention. Many users report a significant reduction in hunger and food-related thoughts while taking semaglutide medications. The medication works by mimicking a hormone involved in appetite regulation and slowing stomach emptying.
Contrave works differently. It combines two medications that affect brain pathways involved in appetite, cravings and reward. Because of this, some people find it particularly helpful for emotional eating or cravings-driven eating patterns.
Neither option is guaranteed to eliminate food noise completely, but understanding the different ways they work may help you discuss suitable options with your healthcare provider.
Building Healthy Habits Alongside Medication
Medication is only one piece of the puzzle. If you stop taking the drugs without changing your lifestyle, the weight will come right back. You need to build strong, healthy habits while the medication is helping to control your appetite.
If you need some inspiration for what to eat, you can check out this Ozempic diet plan. It gives you great ideas on how to nourish your body properly when your appetite is low. Focus on eating lots of protein and fresh vegetables. Drinking plenty of water is also vital to help stop side effects like constipation.
Frequently Asked Questions About Contrave and Ozempic
Is Contrave the same as Ozempic?
No. Contrave contains naltrexone and bupropion, while Ozempic contains semaglutide. They work in completely different ways.
Which is better for weight loss, Contrave or Ozempic?
On average, semaglutide medications such as Ozempic tend to produce greater weight loss than Contrave, although individual results vary.
Is Contrave available in the UK?
In the UK, the equivalent medication is often prescribed under the brand name Mysimba, which contains the same active ingredients as Contrave.
Does Ozempic stop food cravings?
Many users report reduced hunger and fewer food-related thoughts while taking Ozempic, although experiences vary between individuals.
Can you switch from Contrave to Ozempic?
Potentially, but any medication changes should be discussed with your healthcare provider to ensure they are safe and appropriate for your circumstances.
Can you take Contrave and Ozempic together?
There is currently limited evidence on combining these medications, and healthcare professionals do not routinely prescribe them together for weight loss.
Which is cheaper in the UK?
Costs vary depending on the provider, dosage and whether treatment is obtained privately or through specialist services. Tablets are often cheaper initially, but pricing changes frequently.
Is Contrave better for emotional eating?
Some people find Contrave particularly helpful for managing cravings and reward-driven eating because of how it affects certain brain pathways.
Can I take Ozempic and Contrave together?
No, you should never take these two medications at the same time. They both alter your body in strong ways. Taking them together could lead to severe side effects and is highly unsafe.
Will the NHS pay for my weight loss medication?
It is possible, but difficult. The NHS does prescribe Wegovy and Mysimba, but only through specialist Tier 3 weight management clinics. You usually need a BMI of over 35 and another health condition like diabetes to qualify.
How long can I stay on these medications?
Most doctors view these as long term treatments for obesity. However, guidelines do change. The National Institute for Health and Care Excellence currently suggests Wegovy should only be prescribed on the NHS for a maximum of two years. Private clinics may let you stay on it for longer if it is safe to do so.
What happens when I stop taking them?
When you stop taking either medication, your appetite will return to normal. Cravings will likely come back. This is why learning portion control and healthy eating habits during your treatment is so important.
Taking Your Next Steps
Deciding to seek medical help for weight loss is a brave and positive choice. Whether you choose the weekly injection of Wegovy or the daily tablet of Mysimba, you are taking a step towards better health.
Remember to do your research, speak openly with a medical professional, and stay kind to yourself throughout the process. Weight loss is a marathon, not a sprint. Take your time, focus on eating nutritious food, and listen to your body along the way.
