Epigastric pain, nausea, vomiting, diarrhea, inflammation of the mucous membrane of the mouth, glossitis w/ xerostomia, stomatitis, taste disturbances (metallic taste in the mouth), anorexia, coated tongue; hot flashes w/ hyperemia, itching, rash which may be accompanied by fever, urticaria, angioedema; peripheral sensory neuropathy, headache, cramps, dizziness, ataxia, drowsiness, aseptic meningitis; psychotic disorders including confused mental state, hallucinations, depressed mood; temporary vision impairment (eg, diplopia, myopia, blurred vision, impaired visual acuity, changes in color perception), optic neuropathy/neuritis; high body temp.