Related Experiment Video
Updated: Dec 31, 2025

Longitudinal Follow-Up of Urinary Tract Infections and Their Treatment in Mice using Bioluminescence Imaging
Published on: June 14, 2021
High Direct Bilirubin Associated With Levoffoxacin Use in a Neonate
Insights
Levofloxacin successfully treated Stenotrophomonas maltophilia tracheitis in a premature infant. However, this antibiotic use was linked to a sudden increase in direct bilirubin, indicating a potential adverse drug effect in neonates.
Area of Science:
- Neonatal pharmacology
- Infectious diseases
- Clinical toxicology
Background:
- Limited data exist on fluoroquinolone use in neonates.
- Levofloxacin exhibits activity against Stenotrophomonas maltophilia, an important pathogen in neonatal infections.
- Stenotrophomonas maltophilia tracheitis is a serious condition in premature infants.
Observation:
- A premature neonate with S. maltophilia tracheitis was treated with levofloxacin (10 mg/kg every 24 hours).
- Successful treatment of the tracheitis was observed.
- A concurrent, sharp, and unexpected rise in direct bilirubin levels was noted.
Findings:
- Levofloxacin demonstrated efficacy in treating S. maltophilia tracheitis in a premature neonate.
- Levofloxacin administration was associated with a significant increase in direct hyperbilirubinemia.
- This suggests a potential, previously undocumented adverse drug reaction of levofloxacin in neonates.
Implications:
- Levofloxacin may cause cholestatic jaundice in neonates.
- Clinicians should monitor direct bilirubin levels in neonates receiving levofloxacin.
- Further research is warranted to elucidate the mechanism and incidence of this adverse effect.
Abstract:
Limited data exist regarding the use of fluoroquinolones in the neonatal population. Levofloxacin has some utility in this population because it is one of a very limited number of antibiotics with activity against Stenotrophomonas maltophilia. We describe the successful treatment of S maltophilia tracheitis in a premature neonate using levofloxacin 10 mg/kg every 24 hours and the subsequent unexpected sharp rise in the direct bilirubin. This case illustrates a previously unrecognized adverse drug effect associated with levofloxacin use in neonates.
Related Concept Videos
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
Pharmacokinetics in Pediatric Patients: Drug Metabolism
Pharmacokinetics in Pediatric Patients: Drug Excretion
Pharmacokinetics in Pediatric Patients: Drug Distribution
Drug Dosing: Infants and Children
Hepatic Drug Excretion: Influencing Factors

