Fen-phen
//fɛnfɛn// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A combination of the drugs fenfluramine and phentermine, formerly prescribed for weight loss. dated, uncountable
"It is hard to recall the last time a drug so excited the general public. Fen-phen in the 1990s, maybe? Viagra or Botox in the 2000s? Each had amazing hype cycles but none as explosive as Ozempic."
Example
More examples"It is hard to recall the last time a drug so excited the general public. Fen-phen in the 1990s, maybe? Viagra or Botox in the 2000s? Each had amazing hype cycles but none as explosive as Ozempic."
Etymology
Blend of fenfluramine + phentermine, from the initial syllables of the two drugs.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.