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English definition of “off-label”

off-label

adjective [before noun]
 
 
used to describe a medical drug that is used for a different purpose than the one it was originally intended for: Off-label uses may include giving a drug for a disease other than the disease it is approved for, or for treating a child when the product is approved to treat adults.
(Definition of off-label from the Cambridge Business English Dictionary © Cambridge University Press)
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