Several case reports describe the development of 
serotonin syndrome in patients given 
linezolid with 
SSRIs (citalopram, fluoxetine, 
paroxetine and sertraline are implicated). 
 The interaction is probably rare. The manufacturers of 
linezolid say that patients taking 
SSRIs should have their blood pressure monitored and be closely observed (presumably for 
symptoms of 
serotonin syndrome e.g. agitation, diarrhoea, fever, hyperreflexia) if given 
linezolid. They say that if this is not possible, concurrent use should be avoided. See also 
serotonin syndrome.