Myfenax Side Effects

Like all medicines, Myfenax can have side effects, although not everybody gets them.
More common side effects are diarrhoea, decrease in normal amount of white and/or red blood cells in the blood, infection and vomiting. Children may be more likely than adults to have side effects such as diarrhoea, infections, decrease in normal amount of white and/or red blood cells in the blood.
General unwanted effects affecting the body as a whole include hypersensitivity (such as anaphylaxis, angioedema), fever, lethargy, difficulty in sleeping, pains (such as abdominal, chest, joint/muscle, pain on passing urine), headache, flu symptoms and fluid retention in the body.
Other unwanted effects may include: Disorder of the skin such as cold sores and shingles; Urinary disorders such as kidney problems with increased level of urea; Disorders of the digestive system and mouth such as constipation, indigestion, pancreas inflammation, gastrointestinal bleeding, inflammation of the stomach, liver problems, loss of appetite, flatulence, inflammation of the mouth; Disorder of the nerves and senses such as convulsion, dizziness, drowsiness, numbness, muscle spasms; Metabolic, blood and vascular disorders such as weight loss, elevated uric acid, increased blood sugar, bleeding, bruising, change in blood pressure, abnormal heart beat and dilation of blood vessels; Disorder of the lungs such as pneumonia, bronchitis, breathlessness, cough, fluid in the lungs/chest cavity, inflammation of sinus.