A brand name for propoxyphene, a pain-relief medication that was commonly prescribed but later withdrawn from markets due to safety concerns.
A proprietary trademark created by pharmaceutical company Eli Lilly; the origin of the specific name elements is not documented.
Darvon was so widely prescribed in the 1980s-90s that it became nearly generic—but in 2010 the FDA pulled it from shelves after studies showed it could cause dangerous heart rhythms!
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