SubstancesEffects and risk reduction All Downers Psychedelics Stimulants Other substances Cannabinoids Research Chemicals Dissociatives Empathogenes 2 C-B 25B-NBOMe 25C-NBOMe 5-MeO-DMT Alcohol Anabolic steroids Benzos Butylone Cannabis DMT DOB DOM Ecstasy / MDMA Edibles GHB / GBL Heroin Ketamine Caffeine Cocaine LSD MDPV Mephedrone / 4-MMC Methadone Methamphetamine Methoxetamine MXE Methylone Opium Mushrooms Research Chemicals Speed / amphetamine Synthetic cannabinnoids Synthetic opioids