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(in-VES-tih-GAY-shuh-nul drug)
| | A substance that has been tested in a laboratory and has gotten approval from the U.S. Food and Drug Administration (FDA) to be tested in people. A drug may be approved by the FDA for use in one disease or condition but be considered investigational in other diseases or conditions. Also called experimental drug. |
| Previous Definitions: | invasive cervical cancer, invasive hydatidiform mole, invasive procedure, inverted papilloma, investigational | | Next Definitions: | investigator, inviable, involuntary, involuntary nervous system, iodine |
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