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| Question | Answer |
| DRUG | A drug is a chemical that effects the central nervous system (CNS), brain and spinal cord |
| RECREATIONAL DRUG | A drug used for recreational purposes e.g. alcohol, cigarettes and caffeine |
| MEDICAL DRUGS | Drugs that are used to relieve pain and/or issues, or to make you healthy again |
| TOLERANCE | How much your body is used to the drug/ When an individual regularly uses a drug their body gets used to it and they need to take more to get the same effect |
| ADDICTION | Occurs when your body can not cope without the drug and your body becomes dependant on it |
| WITHDRAWAL SYMPTOMS | How your body reacts when you can no longer take drugs. Can range from a headache to death |
| DEPRESSANTS | Slow down brain activity e.g. alcohol and solvents |
| HALLUCIOGEN | Alters what you see and hear e.g. cannabis |
| PAIN KILLERS | Block nerve impulses e.g. aspirin |
| PERFORMANCE ENHANCERS | Improve muscle development e.g. steroids |
| STIMULANT | Increases brain activity e.g. nicotine, caffeine and ecstasy |
| NICOTINE | Addictive chemical in cigarette smoke |
| CARCINOGENS | Chemical in cigarette smoke responsible for causing cancer |
| THALIDOMIDE | A drug. First prescribed to treat anxiety, insomnia, gastritis and tension. Causes birth defects. Now used to treat leprosy and cancer |
| STEROIDS | Drugs which affect your hormones |
| STATINS | Drugs which reduce levels of cholesterol in the blood |
| PLACEBO | a medicine prescribed for the psychological benefit to the patient rather than for any physiological effect |
| DOUBLE BLIND TRIAL | In drug trials, some patients are given a placebo and other patients are given the actual drug. The patients and the doctor do not know who has which until the trial is completed |