: of, relating to, or being a drug used to treat a condition for which it has not been officially approved
Word History
First Known Use
1987, in the meaning defined above
Medical Definition
off-label
adjective
off-la·bel ˌȯf-ˌlā-bəl
: 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