Arsenic Trioxide vs Captopril
## Arsenic Trioxide vs Captopril: Overview
This comparison examines the pharmacological differences between **Arsenic Trioxide** and **Captopril**.
## Mechanism of Action
**Captopril**: First orally active ACE inhibitor; contains thiol group that binds zinc at ACE active site.
## Pharmacokinetics
**Half-life**: Arsenic Trioxide — N/A; Captopril — 1.9 hours.
## Chemical Properties
**Molecular Formula**: Arsenic Trioxide — N/A; Captopril — C9H15NO3S.
**Molecular Weight**: Arsenic Trioxide — N/A; Captopril — 217.2850 g/mol.
**Type**: Arsenic Trioxide — Small molecule; Captopril — Small molecule.