| A | B |
|---|
| tolerance | needing more and more of a drug to feel its effects |
| drug | any substance that chemically affects the mind and body |
| physical dependence | when the body needs the drug to exist or function |
| addiction | the craving for a drug in order to survive |
| withdrawal | removal of a drug from the body that may cause unpleasant effects |
| dose | amount of a drug taken |
| psychological dependence | a strong desire to repeat the use of a drug for emotional reasons |
| administration | method by which a drug enters the body |
| hallucinate | when the mind sees or imagines things that are not real. |
| purity | quality of a drug in a mixture |
