Precursor to metabolite: Clorazepate to Nordiazepam

Clorazepate is converted to Nordiazepam by gastric acid.

Clorazepate mascot — mnemonic cartoon — Clorazepate — mascot

The pair

Clorazepate — Long-acting benzodiazepine prodrug of desmethyldiazepam.
Nordiazepam — Long-acting active metabolite of diazepam and several other benzodiazepines; accumulation can prolong sedation.

Clorazepate · Nordiazepam · Open Clorazepate in the interactive console ↗