well then what you could have done was make a "depressants" catergory where barbiturates, benzodiazepines, GHB, alcohol, etc. would be; then a catergory called "cannabis"(everybody knows cannabis) or put the cannabinoids(THC, JWH) in with a "psychedelics" catergory(as cannabinoids are psychedelics just weak ones), both would be in the broader "hallucinogens" class where the dissociatives and deliriants would be.
here basicaly what i'm suggesting(note this not a "complete" list):
Depressants
- barbiturates
- benzodiazepines
- nonbenzodiazepines("z-drugs)
- alcohol(ethanol)
- GHB
- methaqualone
- meprobamate
- chloral hydrate
- ether
Hallucinogens
*Psychedelics
- LSD
- LSA
- mescaline
- cannabis/cannabinoids(THC, JWH)
- psilocybin
- ibogaine
- DMT
- MDMA
- MDA
- myristicin
- AMT
- 2C-B
- 2C-T-7
*Dissociatives
- ketamine
- PCP
- DXM
- nitrous oxide(also an inhalant)
- ibotenic acid
*Deliriants
- datura
- diphenhydramine
- dimenhydrinate
Opioids
- heroin
- morphine
- codeine
- oxycodone
- hydrocodone
- tramadol
- fentanyl
- kratom
Stimulants
- amphetamines/methamphetamine
- cocaine
- methylphenidate
- caffeine
- nicotine
- propylhexedrine
- ephedrine
- methcathinone
Inhalants
- alkyl nitrites
- butane
- acetone
- nitrous oxide(also a dissociative)