Trimethoprim

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General

  • Type:
  • Dosage Forms:
  • Common Trade Names:

Adult Dosing

Pediatric Dosing

Special Populations

  • Pregnancy Rating:
  • Lactation:
  • Renal Dosing
    • Adult
    • Pediatric
  • Hepatic Dosing
    • Adult
    • Pediatric

Contraindications

  • Allergy to class/drug

Adverse Reactions

Serious

Common

Pharmacology

  • Half-life:
  • Metabolism:
  • Excretion:
  • Mechanism of Action:

Antibiotic Sensitivities[1]

Group Organism Sensitivity
Gram Positive Strep. Group A, B, C, G S
Strep. Pneumoniae I
Viridans strep X1
Strep. anginosus gp X1
Enterococcus faecalis S
Enterococcus faecium R
MSSA I
MRSA I
CA-MRSA S
Staph. Epidermidis S
C. jeikeium R
L. monocytogenes S
Gram Negatives N. gonorrhoeae R
N. meningitidis I
Moraxella catarrhalis X1
H. influenzae I
E. coli S
Klebsiella sp I
E. coli/Klebsiella ESBL+ I
E coli/Klebsiella KPC+ R
Enterobacter sp, AmpC neg I
Enterobacter sp, AmpC pos I
Serratia sp X1
Serratia marcescens R
Salmonella sp I
Shigella sp I
Proteus mirabilis X1
Proteus vulgaris R
Providencia sp. X1
Morganella sp. X1
Citrobacter freundii X1
Citrobacter diversus X1
Citrobacter sp. X1
Aeromonas sp X1
Acinetobacter sp. R
Pseudomonas aeruginosa R
Burkholderia cepacia S
Stenotrophomonas maltophilia R
Yersinia enterocolitica X1
Francisella tularensis X1
Brucella sp. X2
Legionella sp. S
Pasteurella multocida X1
Haemophilus ducreyi R
Vibrio vulnificus X1
Misc Chlamydophila sp R
Mycoplasm pneumoniae X1
Rickettsia sp X1
Mycobacterium avium X1
Anaerobes Actinomyces X1
Bacteroides fragilis X2
Prevotella melaninogenica X1
Clostridium difficile X1
Clostridium (not difficile) X1
Fusobacterium necrophorum X1
Peptostreptococcus sp. X1

Key

  • 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

See Also

References

  1. Sanford Guide to Antimicrobial Therapy 2014