Uncommon side effects • feeling dizzy, sleepy or tired • tingling or numbness of the hands or feet • fainting, low blood pressure while sitting or standing (postural hypotension), flushing • sore throat, coughing, acute breathing problems • feeling sick (nausea), diarrhoea, indigestion • itching, hives, rash, increased sensitivity of the skin to sun • weight increase • flu-like symptoms, joint pain, muscle pain and joint swelling • hair loss