Liver & kidney dysfunction; abnormality of erythrocyte & Hb counts; skin rash; insomnia, headache, drowsiness, stiffness, numbness, trembling of extremities; nausea, vomiting, anorexia, gastric discomfort, dry mouth, constipation, diarrhea, abdominal pain, full abdominal sensation, soft stools or other GI disturbances; anuresis, nocturnal incontinence, other urinary tract disorders; weakness, dizziness, fatigue; flushing.