Liver or kidney function impairment; erythrocyte or Hb count abnormalities, skin rash, insomnia, headache, drowsiness, stiffness, numbness & trembling of extremities, nausea, vomiting, anorexia, gastric discomfort, dry mouth, constipation, diarrhea/soft stool, abdominal pain, full abdominal sensation, urinary disorders, weakness, dizziness, fatigue, flushing, sweating.