| A | B |
| Drug | Any substance, other than food, that causes changes when entered into the body |
| OTC Drugs | Over the counter medications that do not require written permission from a doctor |
| Prescription Drugs | Also known as controlled substances, these require written permission from a doctor to obtain |
| Drug Use | The proper use of drugs for medical purposes |
| Drug Misuse | The use of drugs for the right reasons, but not following directions properly |
| Drug Abuse | The intentional misuse of drugs for non-medical reasons. |
| Addiction | The need to continue to use a drug |
| Physical Dependence | The body demands the continued use of a drug, or it will suffer withdrawal |
| Psychological Dependence | You don't think you can go without a drug |
| Withdrawal | The sickness that results when the body no longer receives a drug it is physically dependent upon. |
| Tolerance | The need to take larger amounts of a drug to get the same effects a smaller dose once gave |
| Inhalants | A group of very powerful vapors not intended to be used medically |
| Stimulants | A group a drugs that speed up the functions of the body |
| Depressants | A group of drugs that slow down the functioning of the body |
| Narcotics | Very powerful depressant drugs used medically to relieve pain or produce sleep |
| Psychedelics | A group of drugs that alter a person's senses. |