Table 2.

Treatment of infection with antibiotics

Microorganism	Antimicrobial agent	Dosage	Route
Staphylococcus aureus coagulate-positive or -negative
Methicillin-susceptible	Nafcillin or floxacillin plus	2 g every 6 hours	IV
	Rifampin for 2 weeks followed by	450 mg every 12 hours	PO
	Rifampin plus	450 mg every 12 hours	PO
	Ciprofloxacin or	750 mg every 12 hours	PO
	Levofloxacin	750 mg every 24 hours	PO
Methicillin-resistant	Vancomycin plus	1 g every 12 hours	IV
	Rifampin for 2 weeks	450 mg every 12 hours	PO
	Rifampin plus	450 mg every 12 hours	PO
	Ciprofloxacin or	750 mg every 12 hours	PO
	Levofloxacin or	750 mg every 24 hours	PO
	Teicoplanin or	400 mg every 24 hours	IV
	Fusidic acid	500 mg every 8 hours	PO
Streptococcus and Enterococcus	Penicillin G or	5 million units every 6 hours	IV
	Ampicillin or amoxicillin	2 g every 4-6 hours	IV
Enterobacter and Actinobacter	Ceftazidime or cefepime plus	2 g every 8 hours	IV
	Aminoglycoside for 2 weeks followed by ciprofloxacin	750 mg every 12 hours	PO

IV = intravenously; PO = by mouth.