A vaporiser is a device used to produce a vapour from heated cannabis which users then inhale. Unlike a joint or bong, vaporisers heat cannabis below combustion temperature, which means that smoke is not produced.

Cannabis is the most widely used illicit drug in the Western world and, correspondingly, is frequently detected via urine testing in the workplace and in competitive sport. Urine testing in the workplace is conducted under the assumption that the substance in question reduces productivity and…

A rare syndrome associated with long-term chronic cannabis use that is characterised by recurrent nausea and vomiting associated with abdominal pain has been reported. These symptoms have been reported to be alleviated temporarily by taking a hot shower or bath or more permanently by abstaining from…

Cannabis smoke contains a similar range of harmful chemicals to that of tobacco smoke (including bronchial irritants, tumour promoters and carcinogens). As inhaled smoke comes into contact with airway mucosa and the distal lung before being absorbed into the circulation, it is likely to effect the…

Against a backdrop of clarity about the dangers of driving under the influence of alcohol, questions have rightfully been raised in the general community about the impact of cannabis use on driving performance and the risk of motor vehicle accidents. Although research examining this issue has gained…