Definition of "off-label" []

• Of or relating to a drug prescribed to treat a condition for which it has not been approved by the Food and Drug Administration. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Using a drug in a capacity for which it was not specifically approved is called "off-label" use and is a common and legal practice in the medical community."
• "Glaxo has disclosed that investigators examined whether Glaxo promoted Wellbutrin for uses not approved by the Food and Drug Administration, an illegal practice known as off-label marketing."
• "It's also not illegal to use drugs for purposes other than their approved use, known as "off-label" use."