recreational drugs: caffeine, ephedrine, cathine, cathinone, methamphetamine (crystal meth), amphetamine, mdma (ecstasy),

chemical structure molecule molecular atoms model computer 2d two dimensional compound formula structural caffeine ephedrine cathine cathinone methamphetamine crystal meth amphetamine mdma ecstasy mescaline mephedrone psilocybin amyl nitrite popper alcohol ghb stimulant narcotic illegal psychoactive abuse addiction rehab overdose trafficking substance controlled lysergic