MDMA & cannabis: a mini-review of cognitive, behavioral, and neurobiological effects of co-consumption.

In conclusion, there are few and somewhat contradictory studies examining the effects of co-use of these drugs on cognitive measures like impulsivity, memory and executive functions or underlying neurobiological alterations, and a shortage of animal studies examining long-term effects of chronic co-administration. PMID: 21696342 [PubMed - indexed for MEDLINE]
Source: Current Drug Abuse Reviews - Category: Addiction Tags: Curr Drug Abuse Rev Source Type: research