Cefotaxime

General

Type: Third generation cephalosporin
Dosage Forms: injectable solution, powder for injection
Dosage Strengths: injectable solution: 20, 40mg/mL; powder for injection: 500mg, 1g, 2g, 10g
Routes of Administration: IV, IM
Common Trade Names: Claforan

Group	Organism	Sensitivity
Gram Positive	Strep. Group A, B, C, G	S
	Strep. Pneumoniae	S
	Viridans strep	S
	Strep. anginosus gp	X1
	Enterococcus faecalis	R
	Enterococcus faecium	X1
	MSSA	S
	MRSA	R
	CA-MRSA	R
	Staph. Epidermidis	I
	C. jeikeium	R
	L. monocytogenes	R
Gram Negatives	N. gonorrhoeae	I
	N. meningitidis	S
	Moraxella catarrhalis	S
	H. influenzae	S
	E. coli	S
	Klebsiella sp	S
	E. coli/Klebsiella ESBL+	R
	E coli/Klebsiella KPC+	R
	Enterobacter sp, AmpC neg	S
	Enterobacter sp, AmpC pos	R
	Serratia sp	S
	Serratia marcescens	X1
	Salmonella sp	S
	Shigella sp	S
	Proteus mirabilis	S
	Proteus vulgaris	S
	Providencia sp.	S
	Morganella sp.	S
	Citrobacter freundii	S
	Citrobacter diversus	S
	Citrobacter sp.	S
	Aeromonas sp	S
	Acinetobacter sp.	R
	Pseudomonas aeruginosa	R
	Burkholderia cepacia	I
	Stenotrophomonas maltophilia	R
	Yersinia enterocolitica	S
	Francisella tularensis	X1
	Brucella sp.	X1
	Legionella sp.	R
	Pasteurella multocida	S
	Haemophilus ducreyi	S
	Vibrio vulnificus	X1
Misc	Chlamydophila sp	X1
	Mycoplasm pneumoniae	X1
	Rickettsia sp	X1
	Mycobacterium avium	X1
Anaerobes	Actinomyces	X1
	Bacteroides fragilis	R
	Prevotella melaninogenica	S
	Clostridium difficile	R
	Clostridium (not difficile)	S
	Fusobacterium necrophorum	X1
	Peptostreptococcus sp.	S

S susceptible/sensitive (usually)
I intermediate (variably susceptible/resistant)
R resistant (or not effective clinically)
S+ synergistic with cell wall antibiotics
U sensitive for UTI only (non systemic infection)
X1 no data
X2 active in vitro, but not used clinically
X3 active in vitro, but not clinically effective for Group A strep pharyngitis or infections due to E. faecalis
X4 active in vitro, but not clinically effective for strep pneumonia

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