When is citalopram contraindicated in the treatment of major depressive disorder (clinical depression)?

Updated: Mar 28, 2019
  • Author: Jerry L Halverson, MD; Chief Editor: David Bienenfeld, MD  more...
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Answer

Consequently, the US Food and Drug Administration (FDA) has advised that citalopram is not recommended in patients with congenital long QT syndrome. [103] Use of citalopram may be appropriate for patients with this condition who lack viable alternatives; however, in such cases, the drug should be given at a low dose, and electrocardiographic and/or electrolyte monitoring should be performed. Citalopram should be discontinued in patients who are found to have a persistent corrected QT interval (QTc) greater than 500 ms.

The dose of citalopram should not exceed 40 mg/day, because of the risk of potentially fatal cardiac arrhythmias; furthermore, higher doses have not been shown to be more effective in treating depression. For patients older than 60 years, the maximum recommended dose of citalopram is 20 mg/day. [103, 104]


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