Colitis, stomatitis, nausea, vomiting, diarrhea, enterocolitis, anal pruritus; neutropenia, leucopenia, agranulocytosis, thrombocytopenia, purpura; angioneurotic edema, serum sickness, anaphylaxis; rash, urticaria, vaginitis; abnormal LFT, jaundice; azotemia, oliguria, tinnitus, vertigo.