What is the recommended combination of antibiotic therapy for endocarditis caused by HACEK microorganisms?
The recommended combination of antibiotic therapy for endocarditis caused by HACEK microorganisms is ceftriaxone sodium 2 g/24 h IV or IM in 1 dose for 4 weeks, ampicillin sodium 2 g IV every 4 h for 6 weeks, or fluoroquinolone therapy with levofloxacin or moxifloxacin for 6 weeks (Class IIa; Level of Evidence C).