JAC Advance Access originally published online on October 13, 2005
Journal of Antimicrobial Chemotherapy 2005 56(6):1176-1178; doi:10.1093/jac/dki368
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Linezolid-associated serotonin syndrome: what we can learn from cases reported so far
Pharmacy Department, Hospital del Mar, Passeig Marítim, 2529, 08003 Barcelona, Spain
Received 9 August 2005; returned 30 August 2005; revised 2 September 2005; accepted 15 September 2005
* Corresponding author. Tel: +34-93-248-31-06; Fax: +34-93-248-32-56; E-mail: sgrau{at}imas.imim.es
Objectives: To study the characteristics of the linezolid-associated serotonin syndrome cases.
Methods: Database search for linezolid-associated serotonin syndrome.
Results: Twelve cases were found. The mean age of patients was 52.8 years. All patients received linezolid concomitantly with selective serotonin re-uptake inhibitor drugs (SSRID). The onset of syndrome was 9.5 days after linezolid introduction and was directly correlated to patients' age (P = 0.024). The symptoms resolved in 2.9 days. Citalopram was associated with a delayed resolution (P = 0.018). A trend was observed towards longer resolution time the longer the half-life of the interacting drug (P = 0.096).
Conclusions: Patients are at risk when receiving SSRID concomitant with linezolid. The syndrome onset could be delayed in older patients. The resolution could be delayed when citalopram is involved in the syndrome.
Keywords: citalopram , oxazolidinones , serotonin uptake inhibitors
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