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Drugs of Choice
USMLE Step 1
Microorganism | Pathology & Tx |
---|---|
Actinomyces | Disease: Actinomycosis, Tx: Penicillin G |
Bacillus anthracis | Disease: Anthrax, Tx: Ciprofloxacin or Tetracyclines |
Bordetella pertussis | Disease: Whooping cough, Tx: Erythromycin |
Borrelia Burgdorferi | Disease: Lyme disease, Tx: tetracycline |
Campylobacter | Disease: Acute inflammatory diarrhea, Tx: ciprofloxacin |
Candida | Disease: vaginal and systemic candidiasis, Tx: miconazole (vaginal) & fluconazole (systemic) |
Chlamydia trachomatis | Disease: PID, Tx: doxycycline |
Chlamydia pneumoniae | Disease: pneumonia, Tx: tetracycline |
Hemophilus Influenza | Disease: pneumonia or meningitis, Tx: 3rd generation cephalosporin |
Helicobacter pylori | Disease: gastric ulcer, Tx: metronidazole & tetracycline |
Klebsiella | Disease: pneumonia or UTI, Tx: 3rd generation cephalosporin (pneumonia) and quinolones (UTI) |
Legionella | Disease: Legionaire's disease, Tx: erythromycin |
Mycobacterium tuberculosis | Disease: tuberculosis, Tx: isoniazid & rifampin & pyrazinamide & ethambutol |
Mycobacterium leprae | Disease: leprosy, Tx: dapsone & rifampin |
Mycobacterium pneumoniae | Disease: atypical pneumonia, Tx: erythomycin |
Neisseria gonorrhea | Disease: gonorrhea, Tx: ceftriaxone |
Neisseria meningitis | Disease: meningitis, Tx: penicillin G |
Nocardia | Disease: pneumonia, Tx: trimethoprim/sulfamethoxazole |
Proteus | Disease: UTI, Tx: quinolones |
Rickettsia | Disease: spotted fever, endemic typhus, Tx: tetracycline |
Salmonella typhi | Disease: typhoid fever, TX: trimethoprim/sulfamethoxazole |
Shigella | Disease: dysentery, Tx: trimethoprim/sulfamethoxazole |
Staphylococcus aureus | Disease: skin infection; sepsis, osteomyelitis, Tx: dicloxacillin (dermatitis); nafcillin or oxacillin (sepsis, osteomyelitis) *NOTE: for meth resistant S. aureus use vancomycin* |
Streptococci pyogenes | Disease: pharyngitis or erysipelas (superficial bacterial skin infection that characteristically extends into the cutaneous lymphatics), Tx: penicillin G or V |
Streptococci viridans | Disease: endocarditis, Tx: penicillin & aminoglycoside |
Treponema pallidum | Disease: syphilis, Tx: penicillin G |
Trichomonas | Disease: trichomoniasis, Tx: metronidazole |
Tropheryma whippelii | Disease: Whipple's disease, Tx: trimethoprim/sulfamethoxazole |
Vibrio cholerae | Disease: cholera, Tx: tetracycline (& fluids!) |
Yersinia pestis | Disease: plague ("black death"), Tx: streptomycin |
Bacillus cereus | Tx: vancomycin or clindamycin |
Clostridium difficile | Tx: metronidazole |
Corynebacterium diptheriae | Tx: erythromycin |
Gardnerella vaginalis | Tx: metronidazole |
Hemophilus ducreyi | Tx: azithromycin or ceftriaxone |
Pasteurella multocida | Tx: penicillin family drugs |