Heartburn, epigastric distress, anorexia, nausea, vomiting, gas cramps, diarrhea; headache, drowsiness, fatigue, menstrual disturbances, ataxia, dizziness, inability to concentrate, mental confusion, visual disturbances, muscular weakness, fever, pains in the extremities, generalized numbness; hypersensitivity reactions; pruritus, urticaria, rash, pemphigoid reaction, eosinophilia, sore mouth, tongue & exudative conjuctivitis. Transient abnormalities in LFT; thrombocytopenia, transient leucopenia, hemolytic anemia & decreased Hb; elevation in BUN & serum uric acid; immunosuppressive effect; jaundice; chronic liver disease, alcholism; peripheral neuropathy; hepatoxicity; mild arthralgia & myalgia; gout; optic neuritis.