anaphylaxis
serum sickness-like reaction
superinfection
C-diff
hemolytic anemia
leukopenia
agranulocytosis
neutropenia
thrombocytopenia
esophagitis
esophageal ulcer
nausea/vomiting
diarrhea
epigastric pain
urticaria
pruritus
fever
rash
eosinophilia
stomatitis
black hairy tongue
LFTs elevated
Dicloxacillin
Oxacillin
Piperacillin
Cloxacillin
Vancomycin
Cefazolin
Ciprofloxacin
Ampicillin