| A | B |
| pharmacology | The study of drugs |
| Toxicology | The study of poisons |
| Food and Drug Administration (FDA) | Government agency that administers and enforces the Food, Drug and Cosmetic Act (FDCA) |
| Drug Enforcement Administration (DEA) | The government agency responsible for administering and enforcing the Controlled Substances Act |
| drug | any substance that when taken into the body may modify its functions |
| generic name | The name established when the drug is first manufactured |
| intradermal medication | Medication inserted just beneath the epidermis using a needle and syringe |
| intramuscular medication | Medication injected directly into the muscle |
| intravenous medication | Medication injected directly into the vein |
| pharmacist | One who is licensed to prepare and dispense drugs |
| side effect | an additional effect |
| tolerance | The body's decreased response to the effect of a drug after repeated dosages |
| oral medication | a drug given by mouth and swallowed |
| sublingual | medication placed under the tongue |
| inhalation | Medications sprayed or inhaled into the nose, throat and lungs |
| transdermal | A method of applying a drug to unbroken skin |
| analgesic drugs | relieve pain |
| anesthetic drugs | Partially or completely numb sensitivity |
| antiarrhythmic drugs | correct cardiac arrhythmias |
| antibiotic drugs | stop or control the growth of infection |
| anticoagulant drugs | Prevent clot formation |
| anticonvulsant drugs | prevent or relieve convulsions |
| antidepressant drugs | Prevents, cures or alleviate mental depression |
| antidiuretic drugs | Suppress the formation of urine |
| anti-inflammatory drugs | counteract inflammation in the body |
| antiviral agents | Treat various viral conditions |
| hypnotic drugs | Induce sleep or dulls the senses |
| antiemetic drugs | Prevent or relieve nausea and vomiting |
| antihypertensive drugs | Prevent or control high blood pressure |