Pancytopenia, agranulocytosis, granulocytopenia, severe hepatic dysfunction w/ jaundice, toxic epidermal necrolysis (TEN), Stevens-Johnson syndrome; interstitial pneumonia, nephritis, rash, pruritus, erythema multiforme; increased SGOT, SGPT, alkaline phosphatase, lactate dehydrogenase, γ-GTP or bilirubin; eosinophilia, neutropenia, leukocytosis, anemia, thrombocytopenia; GI disturbances; headache, sleepiness, numbness, depressed state, insomnia, dizziness, tremor, pseudomembranous colitis, increased triglyceride or uric acid, increased/decreased total cholesterol, +ve urinary protein, +ve urine sugar, fever, gynecomastia, blurred vision, edema, weakness malaise, muscle pain. Alopecia, hyponatraemia.