Many drugs can produce more than one effect, depending on the quantity taken.
Behavior stimulants - cocaine caffeine, nicotine. Narcotic analgesics - opium, morphine, codeine 4. Psychedelics - THC, mescaline, atropine, scopolamine, LSD 5. Most psychoactive compounds contain nitrogen and most are alkaloids. THC, alcohol, LSD and hallucinogenic terpenes are exceptions.