Anaphylaxis
Severe hypotension (rapid IV use) - not much evidence but consider anti-histamine:
1.25-1.67mg/kg/dose diphenhydramine IV to pediatric patients
25 - 50mg diphenhydramine IV to adults
Thrombophlebitis
Tissue necrosis (if extravasation)<unk> asculitis
Exfoliative dermatitis
Stevens-Johnson Syndrome
Toxic Epidermal Necrolysis
Drug rash with eosinophilia and systemic symptoms
Interstitial nephritis
Nephrotoxicity
Ototoxicity
Neutropenia
Thrombocytopenia
Superinfection
Clostridium difficile
1.25-1.67mg/kg/dose diphenhydramine IV to pediatric patients
25 - 50mg diphenhydramine IV to adults<unk>  infusion reaction (rapid IV use) - formerly "red man syndrome"
Hypotension(rapid IV use)
Fever
Nausea
Rigors
Eosinophilia
Rash
Urticaria
Phlebitis
Tinnitus
Dizziness/Vertigo
Elevated BUN/Creatinine<unk> omiting (PO use)
Flatulence (PO use)
Vancomycin
Meropenem
Ertapenem
Teicoplanin
Aztreonam
Fosfomycin
Linezolid
Ceftazidime