Some of the best painkillers in the UK include Naloxone and Paracetamol, while others include Percocet and Para-Acetaminophen.
However, one of the more surprising drugs is a medicinal plant, medicinal marijuana.
The medicine is sold as a topical extract.
It contains high concentrations of cannabidiol (CBD), which is a non-psychoactive cannabinoid.
It is also used to treat certain types of epilepsy, as well as for the treatment of chronic pain.
The cannabis plant was traditionally grown in British Columbia and has been grown in Australia, Colombia, Canada, the United States, New Zealand, and South Africa.
The plant was banned in Canada in 2015 and has since been allowed to grow in British Colombia.
In the US, cannabis was legalised in 2014.
In 2016, the US Food and Drug Administration (FDA) approved a form of CBD oil that has not been tested in humans.
The American government is currently studying CBD oil for the purpose of treating pain.
This article is part of the Marijuana: the World’s Most Powerful Drug, published by The Conversation.
The article was first published on The Conversation and is republished with permission.