Phenibut

//ˈfɛnɪbjuːt// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    β-phenyl-GABA, a gabapentinoid drug similar to baclofen and gabapentin, often legally sold online and taken orally for its euphoric effects. uncountable

Etymology

From phen(yl) + -i- + but(yric acid).

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.