Background and aims Cannabis products with high delta‐9‐tetrahydrocannabinol (THC)
concentrations carry an increased risk of addiction and mental health disorders, while it has …

Aim: The objective of this meta-analysis is to assess the data regarding changes in herbal
cannabis potency over time (from 1970 to 2009). Methods: Systematic searches of 17 …

Abstract Background and Aims Between 2000 and 2005 the average percentage of Δ9‐
tetrahydrocannabinol (THC) in marijuana as sold in Dutch coffeeshops has increased …

In 2005 and 2008, studies reported that cannabis in England had become dominated by the
sinsemilla (unseeded female) form. The average potency (Δ9‐tetrahydrocannabinol [THC] …

This review examines the concentration of seven major cannabinoids, including Δ 9-
tetrahydrocannabinol (THC) and cannabidiol (CBD), in illicit herbal cannabis products …

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 …

As countries adopt more permissive cannabis policies, it is increasingly important to identify
strategies that can reduce the harmful effects of cannabis use. This study aimed to determine …

Background and aims: The effects exuded by cannabis are a result of the cannabinoids
trans-Δ⁹-tetrahydrocannabinol (THC) and cannabidiol (CBD), and is dependent upon their …

Importance Controlled clinical laboratory studies have shown that cannabidiol (CBD) can
sometimes attenuate or exacerbate the effects ofΔ9-tetrahydrocannabinol (Δ9-THC). No …

Abstract Background and Aims Cannabis products are becoming increasingly diverse, and
vary considerably in concentrations of∆ 9‐tetrahydrocannabinol (THC) and cannabidiol …