Aminoglycoside Antibiotics: Clinical Applications and Considerations

Antimicrobial Spectrum

Aminoglycosides are highly effective against many gram-negative bacteria, including Pseudomonas aeruginosa, in patients with severe infections 1
They are also effective against Escherichia coli, Klebsiella species, and Enterobacter species, in patients with complicated urinary tract infections or intra-abdominal infections 2

The American Heart Association recommends aminoglycosides for the treatment of infective endocarditis, in combination with cell wall-active agents, in patients with severe infections 2
Aminoglycosides are ideal for single-dose treatment of uncomplicated lower UTIs due to high urinary concentrations, in patients with urinary tract infections 3
The American Journal of Respiratory and Critical Care Medicine suggests that aminoglycosides are used in combination therapy for synergistic effects against resistant organisms, in patients with cystic fibrosis and Pseudomonas aeruginosa infections 6

Single daily dosing is now preferred over traditional multiple daily dosing for most indications, due to equal or better efficacy and reduced toxicity risk, in patients with severe infections 5
Higher doses are often needed in cystic fibrosis patients due to altered pharmacokinetics and the endobronchial location of infections, in patients with respiratory infections 6

The Kidney International journal recommends monitoring drug levels when treatment exceeds 24-48 hours, and baseline and periodic assessment of renal function, in patients receiving aminoglycosides 7
The Praxis Medical Insights guideline recommends considering baseline audiogram for extended therapy, in patients receiving aminoglycosides 4

The Clinical Infectious Diseases journal suggests that aminoglycosides are not recommended as first-line therapy for community-acquired intra-abdominal infections due to toxicity concerns, in patients with intra-abdominal infections 5
The Kidney International journal recommends avoiding aminoglycosides when suitable, less nephrotoxic alternatives are available, in patients with renal impairment 7
The Praxis Medical Insights guideline recommends avoiding aminoglycosides in pregnancy if possible, due to potential eighth cranial nerve damage in the fetus, in pregnant patients 1