Laudanum Concerning the History and Cure of Acute Diseases", in which he promoted his brand of opium tincture, and advocated its use for a range of medical conditions. By the 18th century, the medicinal properties of opium and laudanum were well known, and the term "laudanum" came to refer to any combination of opium and alcohol. Several physicians, including John Jones, John Brown, and George Young, the latter of whom published a comprehensive medical text entitled "Treatise on Opium", extolled the virtues of laudanum and recommended the drug for practically every ailment. "Opium, and after 1820, morphine, was mixed with everything
Cannabis drug testing Cannabis drug testing Cannabis drug testing describes various drug test methodologies for the use of cannabis in medicine, sport, and law. Cannabis use is highly detectable and can be detected by urinalysis, hair analysis, as well as saliva tests for days or weeks. Unlike alcohol, for which impairment can be reasonably measured using a breathalyser (and confirmed with a blood alcohol content measurement), valid detection for cannabis is time-consuming, and tests cannot determine an approximate degree of impairment. The lack of suitable tests and agreed-upon intoxication levels is an issue in the legality of cannabis , especially regarding intoxicated driving.