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