Bartonellosis (Bartonella Infection) Medication

Updated: May 15, 2017
  • Author: Kassem A Hammoud, MD; Chief Editor: Pranatharthi Haran Chandrasekar, MBBS, MD  more...
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Medication

Medication Summary

Bartonellosis is generally treated with macrolides, tetracyclines, aminoglycosides, or chloramphenicol. Chloramphenicol is not usually used to treat either B henselae or B quintana infection, although it has been used to treat B bacilliformis infection. Chloramphenicol has been primarily used to treat Oroya fever.

Duration of therapy is commonly at least 3 weeks. Patients should be monitored for evidence of response and drug toxicity. Because these infections often fail to respond to therapy or patients experience relapse later, switching to antibiotics from other classes (eg, erythromycin, clarithromycin, azithromycin, trimethoprim and sulfamethoxazole, or ciprofloxacin) may be needed. Gentamicin may also be effective.

Longer duration of therapy, from 3 weeks to 2 months, may be required for patients who have peliosis hepatis or disseminated disease, including bacteremia.

A culture-negative endocarditis treatment regimen should include an aminoglycoside (gentamicin) for 2 weeks and ceftriaxone with or without doxycycline for 6 weeks.

If bartonellosis is proven, the guidelines recommend using a regimen consisting of doxycycline for 6 weeks plus gentamicin (1 mg/kg IV q8h for 14 d).

Valve replacement is required in approximately 80% of cases, but overall prognosis is good, with survival rates of 80%.

Patients in the acute phase of Carrión disease should receive ciprofloxacin and, alternatively, chloramphenicol plus penicillin G. Patients in the eruptive phase of the disease should receive rifampin and, alternatively, azithromycin or erythromycin.

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Antibiotics

Class Summary

Therapy must be comprehensive and cover all likely pathogens in the context of the clinical setting.

Doxycycline (Vibramycin)

Inhibits protein synthesis and bacterial growth by binding to 30S, and possibly 50S, ribosomal subunits of susceptible bacteria. For B quintana infection, bacillary angiomatosis, peliosis hepatitis, and AIDS.

Erythromycin (EES, E-Mycin, Eryc)

Inhibits bacterial growth, possibly by blocking dissociation of peptidyl tRNA from ribosomes, causing RNA-dependent protein synthesis to arrest.

Azithromycin (Zithromax)

Treats mild-to-moderate microbial infections.

Clarithromycin (Biaxin)

Inhibits bacterial growth, possibly by blocking dissociation of peptidyl tRNA from ribosomes, causing RNA-dependent protein synthesis to arrest.

Ciprofloxacin (Cipro)

Fluoroquinolone with activity against Pseudomonas species, streptococci, MRSA, Staphylococcus epidermidis, and most gram-negative organisms but no activity against anaerobes. Inhibits bacterial DNA synthesis and, consequently, growth.

Trimethoprim and sulfamethoxazole (Bactrim, Bactrim DS, Septra, Septra DS)

Inhibits bacterial growth by inhibiting synthesis of dihydrofolic acid.

Chloramphenicol (Chloromycetin)

Binds to 50S ribosomal subunits and inhibits bacterial growth by hindering protein synthesis. Effective against gram-negative and gram-positive bacteria.

Gentamicin (Garamycin)

Aminoglycoside antibiotic for gram-negative coverage. Used in combination with both an agent against gram-positive organisms and another agent that covers anaerobes.

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