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  1. Hallucinogens From the National Institutes of Health (National Institute on Drug Abuse)  
    Club Drugs/Start Here ... Club Drugs ... Drug Use and Addiction/Specifics ... Drug Use and Addiction ... National Institute on Drug Abuse ... Provides basic facts about various ...
  2. Which Classes of Prescription Drugs Are Commonly Misused? From the National Institutes of Health (National Institute on Drug Abuse)  
    Prescription Drug Misuse/Statistics and Research ... Prescription Drug Misuse ... Expand All Opioids What are opioids? Opioids are medications that act on opioid ...
  3. Brain Facts: Glossary (Society for Neuroscience)  
    Brain Diseases/Reference Desk ... Brain Diseases ... Society for Neuroscience
  4. Research Reports: Hallucinogens and Dissociative Drugs From the National Institutes of Health (National Institute on Drug Abuse) - PDF  
    Drug Use and Addiction/Statistics and Research ... Drug Use and Addiction ... National Institute on Drug Abuse ... PDF ... From the National Institutes of Health