Throughout history, drugs have been used for so many reasons. Some are administered for the treatment of a sickness while a few others are used for their stimulation or hallucinogenic effects.
There have also been cases of drug abuse over the years but whatever the case, people are constantly in search of new drugs they can experiment with.
The following is a list of drugs you probably haven't heard of.
Dimethylheptylpyran (DMHP) is a synthetic drug invented in 1949 by the U.S. military at the Edgewood Arsenal. It is a form of marijuana that has all the same effects but can for days. Just 1 mg of the substance was enough to render a soldier incapable of fighting for three days.