Neutropenia, renal failure, hearing loss/ototoxicity, redneck or red man syndrome. Vancin-S 125 mg: Peripheral edema, vasculitis; fatigue, headache; abdominal pain, diarrhea, flatulence, nausea, vomiting; UTI; back pain; rashes including exfoliative dermatitis, SCARs including SJS, TEN, DRESS & AGEP; increased serum creatinine, interstitial nephritis, renal insufficiency; tinnitus, dizziness, vertigo; agranulocytosis, eosinophilia, thrombocytopenia; fever, hypokalemia. Vancin-S: Anaphylaxis. Inflammation at inj site following rapid administration.