Very common side effects
These side effects affect more than 1 in 10 people. They include:
- feeling sick;
- vomiting;
- constipation; and:
- headache.
These side effects tend to happen in the first few weeks of taking Mysimba, and are completely normal. This is because Mysimba can impact parts of your brain and the gastrointestinal system, which can affect your bowel movements and certain receptors related to food.
But once your body adjusts to taking Mysimba, they’ll generally go away or become milder. If after a few weeks, you continue to experience these side effects, you should contact your clinician for advice. They’ll either lower your dose, suggest treatment for the side effects or suggest an alternative treatment.
Experiencing side effects in the first few weeks of starting a drug can be quite normal, even with Mysimba. But if you’re worried you should speak to your clinician.
Common side effects
These side effects affect 1 in every 10 people:
- anxiety;
- dizziness;
- feeling shaky;
- difficulty in sleeping;
- changes in the way food tastes
- dry mouth;
- difficulty concentrating;
- fatigue;
- sleepiness and drowsiness;
- lack of energy;
- ringing in the ears;
- fast or irregular heartbeat;
- hot flush;
- increased blood pressure;
- pain in or near the abdomen;
- excessive sweating;
- itching;
- hair loss; and:
- Irritability.
Uncommon side effects
These side effects will affect up to 1 in every 100 people:
- hives;
- hypersensitivity;
- abnormal dreams;
- feeling nervous, tensed or agitated;
- balance disorder;
- loss of memory (amnesia);
- tingling or numbness of the hands or feet;
- motion sickness;
- burping;
- abdominal discomfort;
- indigestion;
- inflammation of the gallbladder;
- increased creatinine levels in the blood;
- increased liver enzymes and bilirubin levels;
- difficulty in getting or keeping an erection;
- weakness;
- thirsty;
- feeling hot;
- chest pain;
- increased appetite; and:
- weight gain.
For the full list of side effects, check the patient information leaflet.
