Definition of off–label
: of, relating to, or being a drug used to treat a condition for which it has not been officially approved
From the M-W Editors
1987
First Known Use of off–label
1987
Medical Dictionary
off–label
play
adjective
off–la·bel
\ˌȯf-ˌlā-bəl\
Medical Definition of off–label
: 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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