Epigastric pain, nausea, vomiting, diarrhea; oral mucositis, taste disorders, anorexia; reversible pancreatitis; tongue discoloration/furry tongue. Angioedema, anaphylactic shock. Peripheral sensory neuropathy; headache, convulsions, dizziness; encephalopathy (eg, confusion) & subacute cerebellar syndrome (eg, ataxia, dysarthria, gait impairment, nystagmus & tremor); aseptic meningitis. Psychotic disorders including confusion, hallucinations; depressed mood. Transient vision disorders eg, diplopia, myopia, blurred vision, decreased visual acuity, changes in color vision; optic neuropathy/neuritis. Agranulocytosis, neutropenia & thrombocytopenia. Increase in liver enzymes (AST, ALT, alkaline phosphatase), cholestatic or mixed hepatitis & hepatocellular liver injury; liver failure. Rash, pruritus, flushing, urticaria; pustular eruptions; erythema multiforme. Fever.