Headache, nausea, loss of appetite, fever & rash; fatal leucopenia, neutropenia, thrombocytopenia & aplastic anemia; stomatitis, parotitis, pancreatitis, hepatitis; vertigo, tinnitus, peripheral neuropathy, ataxia, insomnia, convulsion, mental depression, aseptic meningitis, hallucination; hematuria, proteinuria, nephrotic syndrome, crystalluria, hypersensitivity reaction.