There is an increasing global trend towards legalizing the use of cannabis, albeit to differing extents. Canada and Uruguay have fully legalized cannabis, while New Zealand has legalized cannabis for medical use only—although a referendum will be held in 2020 on recreational marijuana use. This trend is emerging even amongst Asian countries, which generally impose tough laws on drug use. Thailand is the first country in Southeast Asia to legalize the use of cannabis for medical purposes, with Malaysia and…