Pseudomembranous colitis, candida infection; thrombocytopenia; anaphylactic shock/reaction, Kounis syndrome, hypersensitivity; dizziness, somnolence, sedation, headache; dyspnea; enterocolitis, melena, diarrhea, vomiting, abdominal pain, dyspepsia, nausea, stomatitis, dysgeusia, tongue discoloration; jaundice, abnormal hepatic function; TEN, SJS, erythema multiforme, angioedema, urticaria, dermatitis, rash, pruritus; arthralgia; fatigue, malaise; increased ALT/AST.