The most common side effects with Velcade (seen in more than 1 patient in 10) are herpes zoster (shingles), thrombocytopenia (low blood platelet counts), anaemia (low red blood cell counts), neutropenia (too few of the white blood cells that fight infection), reduced appetite, peripheral neuropathy with paraesthesia (tingling or numbness and pins and needles), headache, dyspnoea (breathlessness), nausea (feeling sick), diarrhoea, vomiting, constipation, rash, myalgia (muscle pain), fatigue (tiredness) and pyrexia (fever).