Common effects – likely to affect less than 1 in 10 people and more than 1 in 100 people Common side effects of treatment include anorexia (lack of appetite), decreased appetite, headache, dizziness, peripheral neuropathy, paraesthesia (tingling or numbness), abnormal coordination, hypoaesthesia (reduced sensation to touch), dyspepsia (heartburn), nausea (feeling sick), constipation and vomiting, swelling or discomfort in the abdomen (stomach) and thrombocytopenia (reduced levels of blood platelets). The neurological symptoms and thrombocytopenia could be due to the underlying disease.