Other less common side effects may include: • shortness of breath and swollen ankles because of heart failure, irregular heart beat, low potassium level in the blood (which may be noticed as weakness and cramps), • breathing difficulties, cough, chest pains and fainting, coughing blood, • swelling and reddening and blistering of the skin around the injection site, • stomach pains from an open sore on the lining of the stomach, also called gastric ulcer and pain and swelling of the food pipe, • fever and chills (covers pneumonitis, plus breathing difficulties and cough), muscle weakness and aches, • yellowing of the skin and/ or eyes, also called jaundice, • change in frequency of urination, painful urination and blood in the urine, • constipation, feeling thirsty and loss of appetite, • skin problems including itchiness of the skin, tender, swollen areas around hair roots and nail disorders, • abnormal manner of walking, • speech difficulties, • back pain, • nose bleeds, • agitation, • sleepiness or drowsiness but sometimes insomnia.