Then why is it near impossible to study Marijuana?
The drug or other substance has a high potential for abuse.
The drug or other substance has no currently accepted medical treatment use in the U.S.
There is a lack of accepted safety for use of the drug or substance under medical supervision.
Schedule I drugs:
Heroin (diacetylmorphine)
LSD (Lysergic acid diethylamide)
Marijuana (cannabis, THC)
Mescaline (Peyote)
MDMA (3,4-methylenedioxymethamphetamine or “ecstasy”)
GHB (gamma-hydroxybutyric acid)
Ecstasy (MDMA or 3,4-Methylenedioxymethamphetamine)
Psilocybin
Methaqualone (Quaalude)
Khat (Cathinone)
Bath Salts (3,4-methylenedioxypyrovalerone or MDPV)