Background Approximately 188 million people use cannabis yearly worldwide, and it has
recently been legalised in 11 US states, Canada, and Uruguay for recreational use. The …

Cannabis potency, defined as the concentration of Δ 9-tetrahydrocannabinol (THC), has
increased internationally, which could increase the risk of adverse health outcomes for …

Background Whether cannabis can cause psychotic or affective symptoms that persist
beyond transient intoxication is unclear. We systematically reviewed the evidence pertaining …

Background Cannabinoids are proposed in a wide array of medical indications. Yet, the
evaluation of adverse effects in controlled clinical studies, following the evidence‐based …

Objective: The United States is in the midst of rapidly changing laws regarding cannabis.
The increasing availability of cannabis for recreational and medical use requires that mental …

Objective: This review discusses the relationship between cannabis use and psychotic,
bipolar, depressive, and anxiety disorders, as well as suicide. It summarizes epidemiological …

OBJECTIVE: Cannabis is associated with psychotic outcomes in numerous studies, an effect
that is commonly attributed to Δ 9-tetrahydrocannabinol (Δ 9-THC). An increasing number of …

BackgroundIt is unclear if research findings support clinical opinion that cannabis use leads
to worse outcomes in people with psychosis, or whether this impression is confounded by …

Background: Cannabis is known to have a broad range of effects on behavior, including
experiencing a “high” and tranquility/relaxation. However, there are several adverse …

Research evidence suggests a dose–response relationship for the association between
cannabis use and risk of psychosis. Such relationship seems to reflect an increased risk of …