noun Date: circa 1951 a drug that has not been declared safe and effective by qualified experts under the conditions prescribed, recommended, or suggested in the label and that may be a new chemical formula or an established drug prescribed for use in a new way
NEW DRUG
Meaning of NEW DRUG in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012