Halazepam
PAXIPAM
What it isDiscontinued benzodiazepine anxiolytic whose activity came largely from conversion to the long-acting metabolite nordiazepam.
Why this oneIt offered nothing its relatives did not, and was withdrawn from the market as a business decision rather than for safety.
What limits itIts main teaching value is as another spoke of the nordiazepam family wheel.
Halazepam prescription history
Animated chart of estimated U.S. prescriptions per year, Benzodiazepines (1961–2026). Halazepam enters in 1981 (estimated).
NO BOXED WARNINGS
Classes and tags
Clinical profile
Defining liabilitySedation, ataxia and long-lived active metabolite accumulation
Active metabolites
Open Halazepam in the interactive console ↗
Self-check
- Which active metabolite largely mediates halazepam’s effects?
Nordiazepam. - Was halazepam withdrawn for safety reasons here?
No—a business decision.