MDMA or related drug-induced mood transtorno, including MDA is characterised by mood symptoms (e.g., depressed or elevated mood, decreased engagement in pleasurable activities, increased or decreased energy levels) that develop during or soon after intoxicação com MDMA or related drugs. The intensity or duration of the symptoms is substantially in excess of mood disturbances that are characteristic of MDMA or related drug intoxicação, including MDA. The amount and duration of MDMA or related drug uso must be capable of producing mood symptoms. The symptoms are not better explained by a primary mental transtorno (e.g., a Depressive transtorno, a Bipolar transtorno, Transtorno esquizoafetivo), as might be the case if the mood symptoms preceded the onset of the MDMA or related drug uso, if the symptoms persist for a substantial period of time after cessation of the MDMA or related drug uso, or if there is other evidence of a pre-existing primary mental transtorno com mood symptoms (e.g., a history of prior episodes not associated com MDMA or related drug uso).