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Condensed definitions appear after each term. Click on the term or "More..." to view the complete definition of a term, a list of similar terms meaning the same thing, related terms often used in conjunction with the term, illustrations of how the term is used or misused, expert opinions, source links, etc.

New Drug Application (NDA)

When the sponsor of a new drug (ie, pharmaceutical company) believes that enough evidence on the drug's safety and effectiveness has been obtained to meet FDA's requirements for marketing approval, the sponsor submits to FDA a new drug application (NDA). More...

New Molecular Entity (NME)

A New Molecular Entity is an active ingredient that has never before been marketed in the United States in any form. More...

New Prescriptions (NRx)

The number of new prescriptions written by physicians for a particular drug over a specific period of time. More...