Medication Summary
Medical therapy in tularemia is directed at antibiotic eradication of the bacterium F tularensis.
Antibiotics
Class Summary
Empiric antimicrobial therapy must be comprehensive and should cover all likely pathogens in the context of the clinical setting.
Streptomycin
Aminoglycoside antibiotic traditionally considered as DOC for tularemia. Has been administered safely IV but usually administered IM.
Gentamicin (Gentacidin, Garamycin)
Aminoglycoside that may be used as an alternative to streptomycin. Less clinical experience with gentamicin than streptomycin in treatment of tularemia. May be administered IV/IM. Many dosing schedules based on CrCl, volume of distribution, site of infection, and type of infection. Monitor serum levels after steady state is reached (usually after 3-4 doses). Trough levels are usually obtained 0.5 h before dose; peak levels are usually obtained 1 h after dose is infused.
Doxycycline (Bio-Tab, Doryx, Vibramycin)
Preferred therapy. Also may eradicate other tick-related copathogens. Should be used for a full 14 d to avoid risk of relapse.
Chloramphenicol (Chloromycetin)
Use only if tetracyclines or aminoglycosides cannot be used. Use if meningeal involvement is possible. Binds to 50S bacterial-ribosomal subunits and inhibits bacterial growth by inhibiting protein synthesis. Effective against gram-negative and gram-positive bacteria.
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