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Mysimba (Naltrexone & Bupropion)

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£124.95

Includes FREE Private Prescription.

* This treatment requires an online consultation for review by our prescribing team. The decision to supply the specific treatment and quantity requested will be based on whether our medical team are satisfied that it will be safe, appropriate, and effective. Please note that you must be 18 years of age or older to request this treatment.

Place your order by 1pm to receive delivery as soon as the next day!

 

Effective Weight Loss treatment

 Suppresses appetite

Increases energy expenditure

Contains Naltrexone and Bupropion

Slow-release formulation

 

What is Mysimba and how does it work?

Mysimba is a weight loss treatment that is used to help people who are obese or overweight to manage their weight.

Mysimba suppresses appetite by targeting specific areas of the brain responsible for regulating food intake and energy use. This helps you to feel fuller with smaller portions, which reduces your overall food intake and supports weight loss.

Mysimba won’t cause weight loss on its own and only works effectively alongside a reduced calorie diet and increased physical activity levels.

Mysimba is licensed for use in adults aged 18-75 with a Body Mass Index (BMI) of 30 or higher, or in individuals with a BMI of 27 or more who also have at least one weight-related condition (e.g. controlled high blood pressure, diabetes, high cholesterol…).

Mysimba contains two active ingredients: Naltrexone and Bupropion – both of which help to support weight loss when taken in combination. Scientists do not fully understand the exact mechanism behind Mysimba, but its active ingredients influence the brain’s regions that control appetite and energy regulation. This supports weight loss in two key ways: by reducing appetite, making it easier to maintain a diet, and by increasing energy expenditure, helping to accelerate the weight loss process.

Additional Information

How should I take Mysimba?

Before taking Mysimba, you should read the manufacturer’s printed Patient Information Leaflet (PIL) from inside the pack. It will give you more information about Mysimba and provide you with a full list of the side effects which you may experience from taking it.

The initial dose is usually one tablet (8mg Naltrexone / 90mg Bupropion) once a day in the morning. The dose will be gradually increased as follows:

  • Week 1: One tablet once a day in the morning
  • Week 2: Two tablets every day – one in the morning and one in the evening
  • Week 3: Three tablets every day – two in the morning and one in the evening
  • Week 4 and onward: Four tablets every day – two in the morning and two in the evening

 

The maximum recommended daily dose of Mysimba is two tablets taken twice a day.

Tablets should be swallowed whole with water and preferably be taken with food. Do not cut, chew, or crush the tablets.

After 16 weeks and each year after your treatment initiation, your prescriber will evaluate whether you should continue to take Mysimba.

If you take more Mysimba than you should, you may be more likely to have a fit or other side effects similar to those described below. Do not delay, contact your doctor or your nearest hospital emergency department immediately.

If you forget to take Mysimba, skip the missed dose and take your next dose at the next usual time. Do not take a double dose to make up for a forgotten dose.

Mysimba starts working immediately, but it can take a few weeks to notice its full effect. Do not stop taking Mysimba without talking to your prescriber first.

Along with their useful effects, most medicines can cause unwanted side effects although not everyone experiences them. The unwanted effects often improve as your body adjusts to the new medicine, but please speak with your doctor or pharmacist if they continue or become troublesome. You will find a full list of possible side effects in the Patient Information Leaflet (PIL) supplied with your medicine.

 

Stop taking Mysimba and seek medical help immediately if you experience any of the following serious side effects:

  • Suicidal thoughts and feeling depressed – there have been reports of depression, suicidal thoughts, and suicide attempts during treatment with Mysimba. If you have thoughts about harming yourself or other distressing thoughts, or if you are depressed and notice that you feel worse or develop new symptoms, contact your doctor or go to a hospital straight away

 

  • Fits/seizures (rare: may affect up to 1 in 1,000 people taking Mysimba with risk of having a fit) – symptoms of a fit include convulsions and usually loss of consciousness. Someone who has had a fit may be confused afterwards and may not remember what has happened. Fits are more likely if you take too much, if you take some other medicines or if you are at a higher than usual risk of fits

 

  • Erythema multiforme and Stevens Johnson Syndrome – Erythema multiforme is a severe condition of the skin that may affect the mouth and other parts of the body, with red, often itchy spots starting on the limbs. Stevens Johnson Syndrome is a rare skin condition with severe blisters and bleeding in the lips, eyes, mouth, nose, and genitals

 

  • Acute generalised exanthematous pustulosis – a red, scaly widespread rash with bumps under the skin and blisters accompanied by fever. The symptoms usually appear at the initiation of treatment

 

  • Rhabdomyolysis – an abnormal breakdown of muscle tissue which can lead to kidney problems. Symptoms include severe muscle cramps, muscle pain, or muscle weakness

 

  • Lupus skin rash or worsening of lupus symptoms – Lupus is an immune system disorder affecting the skin and other organs. If you experience lupus flares, skin rash or lesions (particularly on sun-exposed areas) while taking Mysimba, contact your doctor straight away, as it might be necessary to stop the treatment

 

  • Serotonin syndrome – can manifest as mental status changes (e.g. agitation, hallucinations, coma), and other effects, such as body temperature above 38°C, increase in heart rate, unstable blood pressure, and exaggeration of reflexes, muscular rigidity, lack of coordination, and/or gastrointestinal symptoms (e.g. nausea, vomiting, diarrhoea), while taking Mysimba together with medicines used for treatment of depression (such as Paroxetine, Citalopram, Escitalopram, Fluoxetine, and Venlafaxine)

 

Very common side effects (may affect more than 1 in 10 people)

  • Nausea
  • Vomiting
  • Constipation
  • Headache

 

Common side effects (may affect up to 1 in 10 people)

  • Anxiety
  • Dizziness, feeling of dizziness or spinning (vertigo)
  • Feeling shaky (tremor)
  • Difficulty in sleeping (make sure you do not take Mysimba near to bedtime)
  • Changes in the taste of food (dysgeusia), dry mouth
  • Difficulty concentrating
  • Feeling of tiredness (fatigue) and sleepiness, drowsiness or lack of energy (lethargy)
  • Ringing in the ears (tinnitus)
  • Fast or irregular heartbeat
  • Hot flush
  • Increased blood pressure (sometimes severe)
  • Pain in the upper part of the abdomen
  • Pain in the abdomen
  • Excessive sweating (hyperhidrosis)
  • Rash, itching (pruritus)
  • Hair loss (alopecia)
  • Irritability
  • Feeling jittery

Please tell the prescriber if you are taking, have recently taken, or might take any other medicines, including medicines obtained without a prescription. This is because Mysimba can affect the way some medicines work, and some medicines can have an effect on Mysimba. In the event of a medical emergency, you should tell your doctor, pharmacist, or nurse that you have taken Mysimba and when you did. Do not take Mysimba with other medicines unless your doctor tells you that you can.

Do not take Mysimba with:

  • Monoamine Oxidase Inhibitors (MAOIs) – medicines used to treat depression or Parkinson’s disease such as Phenelzine, Selegiline, or Rasagiline. You must stop taking these medicines for at least 14 days before starting Mysimba

 

  • Opiates and opiate-containing medicines for example to treat cough and cold (such as mixtures containing Dextromethorphan or Codeine), opiate addiction (such as Methadone), pain (for example, Morphine and Codeine), diarrhoea (for example, Paregoric). You must have stopped taking any opiate medicines at least 7-10 days before starting Mysimba. Naltrexone blocks the effects of opiates; if you take higher doses of opiates to overcome these effects of Naltrexone, you may suffer from an acute opiate intoxication which may be life threatening. After you stop treatment with Mysimba you may be more sensitive to low doses of opiates

 

Tell your doctor or pharmacist if you are taking any of the following medicines:

* Medicines that may, when used alone or in combination with Naltrexone/Bupropion, increase the risk of fits such as:

  • Medicines for depression and other mental health problems
  • Steroids (except drops, creams, or lotions for eye and skin conditions or inhalers for breathing disorders such as asthma)
  • Medicines used to prevent malaria
  • Quinolones (antibiotics such as Ciprofloxacin to treat infections)
  • Tramadol (a painkiller belonging to the class of opiates)
  • Theophylline (used in the treatment of asthma)
  • Antihistamines that cause sleepiness (such as Chlorphenamine)
  • Medicines to lower sugar levels in your blood (such as Insulin, Sulphonylureas such as Gliclazide or Glibenclamide, and Meglitinides such as Nateglinide or Repaglinide)
  • Medicines to help you sleep (sedatives such as Diazepam)

 

* Medicines to treat depression (such as Amitriptyline, Imipramine, Venlafaxine, Paroxetine, Fluoxetine, Citalopram, Escitalopram) or other mental health problems (such as Risperidone, Haloperidol). Mysimba may interact with some medicines used for the treatment of depression and you may experience a so-called serotonin syndrome. Symptoms include mental status changes (e.g. agitation, hallucinations, coma), and other effects, such as a body temperature above 38°C, increase in heart rate, unstable blood pressure, and exaggeration of reflexes, muscular rigidity, lack of coordination, and/or gastrointestinal symptoms (e.g. nausea, vomiting, diarrhoea)

* Some medicines used to treat high blood pressure (Beta-blockers such as Metoprolol, and Clonidine, a centrally acting antihypertensive)

* Some medicines used to treat irregular heart rhythm (such as Propafenone, Flecainide)

* Some medicines used to treat cancer (such as Cyclophosphamide, Ifosfamide, Tamoxifen)

* Some medicines for Parkinson’s disease (such as Levodopa, Amantadine or Orphenadrine)

* Clopidogrel or Ticlopidine, mainly used in the treatment of heart disease or stroke

* Medicines used in the treatment of HIV infection and AIDS, such as Efavirenz and Ritonavir

* Medicines used to treat epilepsy such as Valproate, Carbamazepine, Phenytoin, or Phenobarbital

* Digoxin – Mysimba may make Digoxin less effective when taken at the same time: your doctor may consider adjusting the dose of Digoxin

Do not take Mysimba:

  • If you are allergic or sensitive to Naltrexone, Bupropion, or any of the ingredients listed in the Patient Information Leaflet supplied with your medication
  • If you have an abnormally high blood pressure (hypertension) that is not controlled using medication
  • If you have a condition that causes fits (seizures) or if you have a history of fits
  • If you have a brain tumour
  • If you are usually a heavy drinker and you have just stopped drinking alcohol, or are going to stop while you are taking Mysimba
  • If you have recently stopped taking sedatives or medicines to treat anxiety (especially Benzodiazepines), or if you are going to stop them while you are taking Mysimba
  • If you have or have had a bipolar disorder (extreme mood swings)
  • If you are using any other medicines which contain Bupropion or Naltrexone
  • If you have an eating disorder or had one in the past (for example, bulimia or anorexia nervosa)
  • If you are currently dependent on chronic opiates or opiate agonists (for example Methadone), or you are going through acute withdrawal
  • If you are taking medicines for depression or Parkinson’s disease called Monoamine Oxidase Inhibitors (MAOIs) or have taken them in the last 14 days
  • If you have severe liver disease
  • If you have end stage kidney disease

 

Warnings & Precautions

Talk to your doctor or pharmacist before taking Mysimba:

  • If you feel depressed, suicidal, have a history of attempting suicide, panic attacks, or any other mental health problems
  • If you have high blood pressure, because it can become worse. You should have your blood pressure and heart rate measured before you start taking Mysimba and while you are taking it. If your blood pressure or heart rate increases significantly, you may need to stop taking Mysimba
  • If you have uncontrolled coronary artery disease (a heart disease caused by poor blood flow in the blood vessels of the heart) with symptoms such as angina (characterised by chest pain) or a recent heart attack
  • If you already have or have had a condition affecting the circulation of blood in the brain (cerebrovascular disease)
  • If you have any liver problems
  • If you have any kidney problems
  • If you have a history of mania (feeling elated or over-excited, which causes unusual behaviour). If you are taking medicines for depression, the use of these medicines together with Mysimba can lead to serotonin syndrome, a potentially life-threatening condition
  • If you have a condition called Brugada syndrome (a rare hereditary syndrome that affects the heart rhythm) or if cardiac arrest or sudden death occurred in your family

 

Fits (seizures)

Mysimba has been shown to cause fits (seizures) in up to 1 in 1,000 patients. You should inform your doctor before taking this medicine:

  • If you have had a serious head injury or head trauma
  • If you regularly drink alcohol
  • If you regularly use medicines to help you to sleep (sedatives)
  • If you are currently dependent on or addicted to Cocaine or other stimulating products
  • If you have diabetes for which you use Insulin or oral medicines that may cause low sugar levels in your blood (hypoglycaemia)
  • If you are taking medicines that may increase the risk of fits

 

If you have a fit (seizure), you should stop taking Mysimba and consult your doctor immediately

 

Hypersensitivity reactions

You should stop taking Mysimba immediately and consult your doctor if you are experiencing any symptoms of an allergic reaction such as swelling of the throat, tongue, lips, or face, difficulty swallowing or breathing, dizziness, fever, rash, pain in the joints or in the muscles, itching or hives after taking this medicine.

Serious skin reactions, including Stevens-Johnson syndrome and acute generalised exanthematous pustulosis (AGEP), have been reported in association with Mysimba treatment. Stop using Mysimba and seek medical attention immediately if you notice any of the symptoms related to these serious skin reactions.

 

Mysimba with alcohol

Excessive use of alcohol while being treated with Mysimba might increase the risk for fits (seizures), mental disorder events, or might reduce alcohol tolerance. Your doctor may suggest you do not drink alcohol while you are taking Mysimba, or try to drink as little as possible. If you do drink a lot now, do not just stop suddenly, because that may put you at risk of having a fit.

 

Pregnancy, Breastfeeding, & Fertility

Mysimba should not be used during pregnancy, or in women currently planning to become pregnant, or while breastfeeding. If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

 

Driving and using machinery

Mysimba might make you feel dizzy and sleepy which may weaken your ability to concentrate and react. Do not drive, use any tools or machines, or perform dangerous activities until you know how this medicine affects you. If you experience fainting, muscle weakness or fits during treatment, do not drive or use machines.

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Our fully accredited and qualified UK prescriber then screens your completed medical questionnaire and assesses your suitability for treatment. If the prescriber has any additional questions or concerns, they will contact you directly for clarification.

Provided that the prescriber is satisfied that the treatment is appropriate, the repeat request will be approved, and a supply price provided. In the event that your request is refused, you will be informed of the reason and given referral advice.

Step 3 - Express Delivery of Your Chosen Treatment

Once your order has been approved by our prescriber, your treatment is then dispensed, packaged, and posted by our regulated pharmacy partner. Your order will arrive as quickly as the next day depending on your selected delivery option.

You can be confident that your treatment will be 100% genuine, safe, and effective as we only use medications procured from licensed manufacturers and trusted UK wholesalers.

Rest assured that your treatment will be delivered in plain packaging for complete discretion.

Step 2 - Complete a Short Medical Questionnaire

A straightforward medical questionnaire acts as a replacement to the conventional face-to-face appointment. This type of consultation process is quick and should only take around five minutes to complete.

The questionnaire consists of simple questions regarding your general health and the specific condition selected. Questions are easy to understand and similar to those that you would be asked during a GP appointment.

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Our fully accredited and qualified UK prescriber then screens your completed medical questionnaire and assesses your suitability for treatment. If the prescriber has any additional questions or concerns, they will contact you directly for clarification.

Provided that the prescriber is satisfied that the treatment is appropriate, the order will be approved, and a free private prescription issued for dispensing. In the event that your order is refused, you will be informed of the reason and given referral advice.

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