It can depend on the type of weight loss treatment you’re using, but the most common side effects are flatulence, increased and sudden bowel movements, fatty or oily stools, diarrhoea, constipation, headache and feeling sick.
Not everyone gets these symptoms, but if you do, they normally occur shortly after eating a meal that’s high in fat. They’re a lot less likely to occur if you reduce the number of fatty meals you have, and side effects tend to ease once your body has adjusted to the treatment.
Severe side effects are rare with weight loss treatments, but if you experience any signs of an allergic reaction (such as serious breathing difficulties, rash, itching, sweating, swelling in the face and throat, increased heart rate, nausea and vomiting) you should stop taking the treatment and seek emergency medical attention immediately.
There have been reports of suicidal thoughts, suicide attempts and depression amongst patients whilst using Mysimba. If you get any thoughts of self-harm or other thoughts which cause you distress, or if you are feeling depressed, seek medical advice or go to hospital straight away.
Although uncommon, patients using Saxenda have reported experiencing pancreatitis (inflammation of the pancreas). Pancreatitis is a potentially life-threatening condition, and you should go to hospital or get medical attention immediately if you develop severe and persistent abdominal pain which may spread to your back, and nausea and vomiting symptoms.
In the first instance, if you get any side effects, you should always contact our clinician. They may advise you to try an alternative weight loss product, or to make further adjustments to your diet.