Erythromycin-associated cholestatic hepatitis.
retrospective_cohort · Level III
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Abstract
OBJECTIVE: To estimate the risk of cholestatic hepatitis of uncertain origin in patients who had recently received erythromycin, a drug which is known to cause this disorder. DESIGN: A retrospective cohort study using data automatically recorded on general practitioners' office computers. SETTING: Some 600 general practices in the United Kingdom. SUBJECTS: 366,064 people who received erythromycin. MAIN OUTCOME MEASURE: Clinically documented cholestatic hepatitis of uncertain origin diagnosed 1-45 days after a prescription for erythromycin. RESULTS: There were 13 cases of cholestatic hepatitis of uncertain origin diagnosed within 45 days of receiving erythromycin which were either characteristic of or consistent with a syndrome previously described as being associated with this drug. CONCLUSION: The risk of cholestatic jaundice associated with erythromycin is estimated to be in the range of 3.6 per 100,000 users (95% confidence interval, 1.9-6.1).