black box warning

noun

A warning, surrounded by a black border, affixed to a prescription drug to indicate that it may cause serious or life-threatening effects.

Meanings

nounblack box warning (plural black box warnings)

plural black box warnings

  1. USA warning, surrounded by a black border, affixed to a prescription drug to indicate that it may cause serious or life-threatening effects.
Cite this entry
APA

black box warning. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/black%20box%20warning

MLA

“black box warning.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/black%20box%20warning. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “black box warning,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/black%20box%20warning.

Source: black box warning on Wiktionary, CC BY-SA 4.0.