: of, relating to, or being a drug used to treat a condition for which it has not been officially approved

Examples of off-label in a Sentence

Recent Examples on the Web
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If psilocybin therapy is approved for another condition whose study is further along, Hendricks notes, doctors may be able to prescribe it off-label for cocaine use disorder as researchers continue to pursue FDA approval. Humberto Basilio, Scientific American, 10 Aug. 2026 Other potential uses—on- and off-label—include treatment for heart disease, sleep apnea, and Alzheimer’s (official studies on long-term effects are still pending). Elyse Moody, Architectural Digest, 27 July 2026 From ayahuasca circles and mail-order ketamine lozenges to off-label peptide injections, IV drips and longevity treatments, there’s a seemingly infinite number of ways to look and feel better that people will swear by in this town. Shelby Hartman, Los Angeles Times, 8 July 2026 Misoprostol is approved by the FDA to treat ulcers, and is also widely used off-label to manage miscarriages, induce labor and end pregnancies. Kate Wells, NPR, 22 June 2026 See All Example Sentences for off-label

Word History

First Known Use

1987, in the meaning defined above

Time Traveler
The first known use of off-label was in 1987

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Cite this Entry

“Off-label.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/off-label. Accessed 25 Aug. 2026.

Medical Definition

off-label

adjective
: of, relating to, or being an approved drug legally prescribed or a medical device legally used by a physician for a purpose (as the treatment of children or of a certain disease or condition) for which it has not been specifically approved (as by the United States Food and Drug Administration)
the off-label use of oral contraceptives to treat dysmenorrhea
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