Related by context. Frequent words. (Click for all words.) 75 stimulants 63 amphetamine 62 amphetamines 61 modafinil 59 anabolic steroid 58 anti depressant 58 diuretic 57 substances 57 ephedrine 57 banned substance 54 ketamine 54 caffeine 53 banned stimulant 53 Adderall 53 opiate 53 narcotic 53 banned substances 52 aphrodisiac 52 herb 51 anabolic steroids 51 analgesic 51 antidepressant 51 sedative 51 MDMA 50 hallucinogens 50 substance 50 medicinal 50 creatine 50 laxative 50 opiates 50 drugs 50 ecstasy 49 masking agent 49 ephedra 49 dietary supplement 49 GHB 49 GABA 49 Caffeine 49 khat 49 hallucinogenic 48 herbal 48 stimulator 48 painkiller 48 illicit drugs 48 quinine 47 Ecstasy 47 diuretics 47 testosterone 47 Ritalin 47 prohibited substances 47 steroids 46 pain relieving 46 DHEA 46 intoxicant 46 metabolite 46 EPO 46 painkillers 46 antihistamine 46 supplements 46 active ingredient 46 methamphetamines 46 capsaicin 45 morphine 45 Ephedra 45 anti inflammatory 45 psychotropic drugs 45 methylphenidate 45 performance enhancers 45 THC 45 opioid 45 hormone 45 cough syrup 44 clenbuterol 44 ibuprofen 44 nutritional supplements 44 sibutramine 44 anti oxidant 44 pain relievers 44 antidepressants 44 finasteride 44 LSD 44 cough medicine 44 Salvia 44 drug 44 Cocaine 44 Provigil 43 kava 43 hormones 43 steroid 43 Phentermine 43 dietary supplements 43 opioids 43 analgesics 43 anti depressants 43 cocaine 43 curcumin 43 crystal meth 43 benzodiazepines 42 melatonin 42 pills 42 crystal methamphetamine