Very rare side effects (likely to affect less than 1 in every 10,000 patients): • hallucinations, memory loss, coma, neuroleptic malignant syndrome (inability to move, sweating, fever, incontinence), status epilepticus (prolonged or repeated seizures). • breathing disorders, shortness of breath, inflammation of the lungs. • inflammations of the pancreas (severe pain in the stomach or back) • liver problems, kidney failure, increased blood levels of creatinine (a waste product that your kidneys should normally remove).. • severe rashes (at the same time you may feel unwell or develop a fever), itching. • abnormal muscle breakdown (you may feel pain or weakness in your muscles) which can lead to kidney problems. • swollen glands, blood disorders (reduction in the number of blood cells, which can make infection more likely and can make you look pale, feel tired and feverish, and bruise more easily). • decreased sweating, overheating.