Uncommon side effects itching, increased sweating, unusual taste in the mouth, hot flushes, migraines, memory impairment, chills, diarrhoea, nausea, vomiting, shortness of breath, sore throat, infection of the lymphatic vessels, whitening of skin, eye inflammation, rashes, excessive sweating, foot and leg swelling, increase in enzymes that track liver function, reduced percentage of red blood cells and pain in the upper abdomen or lower chest.