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  1. Dictionary
    drug
    /drʌɡ/

    noun

    verb

    • 1. administer a drug to (someone) in order to induce stupor or insensibility: "they were drugged to keep them quiet" Similar anaesthetizegive an anaesthetic tonarcotizegive drugs to

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  2. www.britannica.com › science › drug-chemical-agentDrug | Definition, Types, Interactions, Abuse, & Facts

    Sep 9, 2024 · A drug is a chemical substance that affects the functioning of living things and the organisms that infect them. Learn about the different types of drugs, how they act on receptors and macromolecules, and how they are used in medicine.

  3. www.britannica.com › science › drug-abuseDrug abuse | Definition & Facts | Britannica

    6 days ago · Drug abuse, the excessive, maladaptive, or addictive use of drugs for nonmedical purposes despite social, psychological, and physical problems that may arise from such use. Abused substances include such agents as anabolic steroids, which are used by some athletes to accelerate muscular development.

    • The Editors of Encyclopaedia Britannica

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  5. www.britannica.com › topic › drug-useDrug use | Recreational Drug Use, Drug Abuse, & Psychotropic...

    Sep 9, 2024 · Drug use is the consumption of drugs, whether orally, by injection, or by other means, for psychotropic rather than medical purposes.

  6. en.wikipedia.org › wiki › Substance_abuseSubstance abuse - Wikipedia

    5 days ago · Substance abuse, also known as drug abuse, is the use of a drug in amounts or by methods that are harmful to the individual or others. It is a form of substance-related disorder. Differing definitions of drug abuse are used in public health, medical, and criminal justice contexts.

  7. www.verywellmind.com › substance-use-4014640Substance Use: Overview, Definition, Types, and Risks - Verywell...

    5 days ago · Substance abuse is typically defined as a pattern of harmful use of any substance for mood-altering purposes. Substances can include alcohol, prescription and over-the-counter drugs, illegal drugs, inhalants and solvents, nicotine, and even coffee.

  8. www.verywellhealth.com › the-effects-of-drug-addiction-5214343How Drug Addiction Affects the Brain and Body - Verywell Health

    Sep 6, 2024 · Treatment. Drug addiction is a treatable, chronic medical disease that involves complex interactions between a person’s environment, brain circuits, genetics, and life experiences. People with drug addictions continue to use drugs compulsively, despite the negative effects.

  9. usrehab.org › resources › differences-between-substance-abuseDifferences Between Substance Abuse, Dependence, & Addiction

    Sep 19, 2024 · Substance abuse, substance dependence, and addiction can be confusing terms to untangle. This article explains the differences between these conditions and how developing your knowledge and understanding about them can help you assess your drug use