Alcohol
Tobacco
Cannabis
Alprazolam
Diazepam
Clonazepam
Lorazepam
Etizolam
Phenazepam
Gabapentin
Pregabalin
Zolpidem
Zaleplon
Cocaine
Mixed amphetamine salts
Methamphetamine
Lisdexamfetamine
2-FMA
4-FA
4-FMA
MDPV
a-PVP
4-MMC
4-MEC
4-EMC
4-FMC
3,4-DMMC
Methylone
MDMA (and whatever else I've gotten in rolls in addition to the MDMA)
MDAI
5-IAI
Ethylone
Pentylone
Pentedrone
Butylone
Buphedrone
Ethcathinone
Phentermine
Methylphenidate
Dexmethylphenidate
Ethylphenidate
LSD
LSA (via Hawaiian Baby Woodrose Seeds)
Mescaline (via Trichocereus bridgesii brew)
DMT
DPT
4-AcO-DMT
4-HO-MET
4-AcO-DiPT
DOx (unknown DOx sold as "acid")
DOC
Bromo-DragonFLY
2C-E
2C-I
2C-T-2
5-MeO-DMT
5-MeO-DiPT
5-MeO-MiPT
5-MeO-DALT
JWH-018
JWH-019
JWH-073
JWH-081
JWH-122
JWH-250
UR-144
5F-UR-144
5F-AKB48
5F-PB22
AM-694
Codeine
Oxycodone
Hydrocodone
Methadone
Oxymorphone
Hydromorphone
Morphine
Heroin
MT-45
Buprenorphine
Dextropropoxyphene
Ketamine
Methoxetamine
N-Ethyl-Norketamine
Dextromethorphan
Nitrous Oxide
Salvia Divinorum
Tetrafluoroethane
25C-NBOMe
25B-NBOMe
Diphenhydramine
Doxylamine
Pseudoephedrine
Paroxetine (Paxil, once)
Fluoxetine (Prozac)
Aripiprazole (Abilify)
Quetiapine (Seroquel)
Lamotrigine (Lamictal, once)
Caffeine
Papaver Somniferum via Poppy Pod Tea (Opium, I guess. Basically, an oral brew of morphine, codeine, and thebaine.) Pretty sure it was actually the Giganteum variety.
Calea Zacatechichi
Tramadol
Trazodone
Oxcarbazepine (Trileptal)
Buspirone
Loperamide
Chlorpheniramine
Piracetam
Nicotiana Glauca (as well as Rustica, but I didn't figure that deserves separate mention from Tobacco and would be unfair towards my count)
Cyclobenzaprine (Flexeril)
Carisoprodol (Soma)
Dilantin
Pamelor
Bupropion
Damn, I know there's at least quite a few more, but I'm on meth and a beer or two deep right now as well, and I think my cousin just showed up. I'll add more when I'm on the computer if I can think of any.
EDIT: aMT I forgot that one. Ahh, the days of frequent free samples. Good times.
Oh, and 5F-AKB48 and 5F-PB22. I'll add those to the list. I also believe one of the blends I've smoked had AM-2201, but I'm not positive about that one, so I didn't put it on there.