2. Method
This focused review is based on a literature search using the PubMed database. The keywords used in the search were: ‘serotonin syndrome’, ‘serotonin toxicity’ and ‘serotonergic syndrome’ in combination with ‘serotonin/serotonergic agents’, ‘pharmacology’, ‘serotonin receptors’, ‘drug effects’, ‘diagnosis’ and ‘treatment’. A cross-reference search based on the examined literature was performed.