Withdrawn from the market (business decision)
Ethchlorvynol
PLACIDYL
What it isTertiary acetylenic alcohol sedative-hypnotic; withdrawn.
Why this oneIt was a widely used hypnotic before the benzodiazepines.
What limits itNarrow margin, dependence and a difficult overdose. US marketing discontinued in 1999.
FDA-approved for
- insomnia (US marketing discontinued 1999)
NO BOXED WARNINGS
Principal riskWithdrawn; narrow margin and dependence
Classes and tags
Clinical profile
Mechanism of action: Ethchlorvynol ballicule
