Tuesday, December 24, 2013

Liver Injury Associated With Antidepressant Use Requires Quick Action

Although uncommon, drug-induced liver injury (DILI) from antidepressant drugs does rarely occur and may be irreversible, and clinicians should promptly discontinue antidepressant drug use when liver abnormalities appear, according to the study “Antidepressant-Induced Liver Injury: A Review for Clinicians,” which appears online in AJP in Advance.

French researchers conducted a PubMed literature search for publications from 1965 onward related to antidepressant-induced liver injury. The search terms were “liver injury,” “liver failure,” “DILI,” “hepatitis,” “hepatotoxicity,” “cholestasis,” and “aminotransferase,” cross-referenced with “antidepressant.”

They found that 0.5% to 3% of patients treated with antidepressants may develop asymptomatic mild elevation of serum aminotransferase levels. Liver damage is in most cases idiosyncratic and unpredictable, and it is generally unrelated to drug dosage. The antidepressants associated with greater risks of hepatotoxicity are iproniazid, nefazodone, phenelzine, imipramine, amitriptyline, duloxetine, bupropion, trazodone, tianeptine, and agomelatine. The antidepressants that seem to have the least potential for hepatotoxicity are citalopram, escitalopram, paroxetine, and fluvoxamine.

Aminotransferase surveillance is the most useful tool for detecting DILI, Moreover, early detection and prompt drug discontinuation are critical, the researchers stated. “Surveillance of liver function in clinical trials and careful evaluation of reported abnormalities could make a major contribution to the early detection of antidepressants associated with a high risk of causing DILI. Finally, further research is required before rigorously founded recommendations can be established for clinical practice.”

For further information about antidepressant effectiveness and side effects, see the Psychiatric News article “New Data Rebut Claims About Antidepressants.”

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