Association between tetracycline or doxycycline and hepatotoxicity: a population based case-control study.

Association between tetracycline or doxycycline and hepatotoxicity: a population based case-control study. Research Abstract Details 

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Association between tetracycline or doxycycline and hepatotoxicity: a population based case-control study. Abstract Text:

P C Heaton,S R Fenwick,D E Brewer,P C Heaton,S R Fenwick,D E Brewer,

BACKGROUND AND OBJECTIVE: An FDA Working Group, along with representatives of PhRMA and the American Association for the Study of Liver Diseases, as well as the Institute of Medicine Report 'To Err is Human: Building a Safer Health Care System' have suggested that post-marketing drug surveillance is a important method to decrease adverse drug events. While tetracyclines are known to cause hepatotoxicity, no post-marketing drug surveillance studies have examined the risk of developing hepatotoxicity with tetracyclines. Therefore, the objective of this study is to determine the difference in risk of hepatotoxicity in patients receiving doxycycline or tetracycline using California Medicaid claims. METHODS: This study used a retrospective, matched case-control study using California Medicaid claims data. The cases were defined as recipients who had at least one diagnosis of hepatotoxicity any time from 1 July 1999 to 31 December 2001. One control was identified for each case, matched on age, gender and race. Logistic regression was used to determine the adjusted odds ratio (OR) and 95% confidence intervals for current users and past users of tetracycline and doxycycline. Covariates controlled for in the analysis were age, use of other hepatotoxic drugs, renal dysfunction, pregnancy, and alcohol or illicit drug use. RESULTS: A total of 3377 cases of hepatotoxicity were identified. Current users and past users of tetracycline had a statistically significant increased risk of developing hepatotoxicity (current use OR 3.70, 95% CI 1.19-11.45; past use OR 2.72, 95% CI 1.26-5.85). Current users or past users of doxycycline did not have an increased risk of developing hepatotoxicity (current use OR 1.49, 95% CI 0.61-3.62; past use OR 1.74, 95% CI 0.99-3.06). Tetracycline was commonly used for acne, acute bronchitis and upper respiratory infections. Doxycycline was commonly used for acute bronchitis, vaginitis and acne. DISCUSSION AND CONCLUSION: Doxycycline was potentially less hepatotoxic than tetracycline. Doxycycline could potentially be a safe substitute for tetracycline, when appropriate.

Association between tetracycline or doxycycline and hepatotoxicity: a population based case-control study. Publishing Authors By Initials

PC Heaton,SR Fenwick,DE Brewer,PC Heaton,SR Fenwick,DE Brewer,

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Association between tetracycline or doxycycline and hepatotoxicity: a population based case-control study. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of clinical pharmacy and therapeutics

VOLUME: 32

Page Numbers: 483-7

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ISSN: 0269-4727

DAY: 18

MONTH: Oct

YEAR: 2007

Association between tetracycline or doxycycline and hepatotoxicity: a population based case-control study. Information

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LANGUAGE: eng

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AFFILIATION: Division of Pharmacy Practice, College of Pharmacy, University of Cincinnati, Cincinnati, OH, USA. pam.heaton@uc.edu

Country: England

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MEDLINETA: J Clin Pharm Ther

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