Cough, nasal symptoms, patchy colour changes inside the mouth, heartburn, chest pain (possibly indicating a heart muscle disease called cardiomyopathy), breakdown of muscle tissue, liver disorders such as enlarged liver, fatty liver, inflammation of the liver (hepatitis), inflammation of the pancreas, nail and skin colour changes, sweating, flu-like feeling, drowsiness, passing urine more frequently, breast enlargement in male patients, chest pain, chills, loss of appetite, taste changes, tingling in the limbs, seizures, inability to concentrate, depression and feeling anxious, increase of lactic acid in the body known as lactic acidosis (see Take special care with Combivir).