- for escitalopram : Hypersensitivity to escitalopram or one of the excipients. non-selective and irreversible monoamine oxidase (IMAO) inhibitors, because of the risk of serotoninergic syndrome with agitation, trembling, hyperthermia. reversible MAO-A inhibitors (e.g.: moclobemide) or a non-selective reversible MAO inhibitor (linezolid), given the risk of a serotoninergic syndrome