Doxycycline
Predictable Activity
Actinobacillus spp
Actinobaculum spp
Actinotignum spp
Aeromonas spp
Aggregatibacter spp
Arcanobacterium haemolyticum
Bacillus cereus group
Bartonella spp
Borrelia burgdorferi
Campylobacter spp
Capnocytophaga spp
Cardiobacterium spp
Chlamydia spp
Coxiella burnetii
Dysgonomonas spp
Eikenella spp
Francisella tularensis
Gardnerella spp
Haemophilus influenzae
Haemophilus parainfluenzae
Kingella spp
Legionella spp
Leptospira spp
Mannheimia spp
Micrococcus spp
Moraxella catarrhalis
Mycobacterium abscessus
Mycobacterium chelonae
Mycobacterium fortuitum
Mycoplasma pneumoniae (new name Mycoplasmoides pneumoniae)
Neisseria spp (animal origin)
Neisseria meningitidis
Pasteurella spp
Plesiomonas spp
Rickettsia spp
Rothia spp
Staphylococcus aureus (MSSA, MRSA)
Staphylococcus saprophyticus
Treponema pallidum
Tropheryma whippleii
Trueperella spp
Ureaplasma spp
Vibrio spp
Yersinia spp
Unpredictable Activity
Abiotrophia spp
Acinetobacter spp
Actinomyces spp
Aerobic Gram negative bacilli – nonfermenters
Aerococcus spp
Bacillus spp
Bergeyella zoohelcum
Brucella spp
Burkholderia spp
Chryseobacterium spp
Citrobacter freundii complex
Coagulase negative Staphylococci (CoNS)
Corynebacterium spp
Cutibacterium acnes
Enterobacter spp
Enterococcus spp
Erysipelothrix spp
Esherichia coli
Gemella spp
Granulicatella spp
Group A Streptococci
Helicobacter pylori
Klebsiella oxytoca
Klebsiella pneumoniae
Leuconostoc spp
Listeria spp
Mycoplasma genitalium (new name Mycoplasmoides genitalium)
Mycoplasma hominis (new name Metamycoplasma hominis)
Neisseria gonorrheae
Neisseria spp (oral flora)
Nocardia spp
Raoultella spp
Shigella spp
Staphylococcus lugdunensis
Stenotrophomonas maltophilia
Streptococcus anginosus group
Streptococcus bovis group
Streptococcus pneumoniae
Streptococcus spp (zoonotic)
No/Insufficient Activity
Anaerobes
Group B,C,G Streptococci
Listeria monocytogenes
Morganella morganii
Proteus mirabilis
Proteus vulgaris complex
Providencia spp
Pseudomonas aeruginosa
Pseudomonas spp
Salmonella spp
Serratia spp