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Association between tetracycline or doxycycline and hepatotoxicity: a population based case-control study.
P C Heaton1, S R Fenwick, D E Brewer
1Division of Pharmacy Practice, College of Pharmacy, University of Cincinnati, Cincinnati, OH, USA. pam.heaton@uc.edu
Journal of Clinical Pharmacy and Therapeutics
|September 19, 2007
Summary
Tetracycline use significantly increased hepatotoxicity risk, while doxycycline did not. Doxycycline may be a safer alternative to tetracycline for certain infections, warranting further post-marketing surveillance.
Area of Science:
- Pharmacology
- Hepatology
- Public Health
Background:
- Post-marketing drug surveillance is crucial for identifying adverse drug events.
- Tetracyclines are known to cause hepatotoxicity, but specific risks remain understudied.
- This study addresses the need for post-marketing surveillance of tetracycline-induced hepatotoxicity.
Purpose of the Study:
- To compare the risk of hepatotoxicity between doxycycline and tetracycline.
- To utilize California Medicaid claims data for post-marketing drug surveillance.
- To inform clinical practice regarding the comparative safety of tetracyclines.
Main Methods:
- Retrospective, matched case-control study design.
- Utilized California Medicaid claims data from July 1999 to December 2001.
- Matched cases of hepatotoxicity with controls based on age, gender, and race; logistic regression analysis performed.
Main Results:
- Identified 3377 cases of hepatotoxicity.
- Tetracycline use (current and past) was associated with a significantly increased risk of hepatotoxicity (ORs 3.70 and 2.72, respectively).
- Doxycycline use (current and past) did not show a statistically significant increased risk of hepatotoxicity (ORs 1.49 and 1.74, respectively).
Conclusions:
- Doxycycline appears to be less hepatotoxic than tetracycline.
- Doxycycline may serve as a safer alternative to tetracycline when clinically appropriate.
- Highlights the importance of comparative safety assessments in drug selection.
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