Captopril vs Rifamycin Sodium
## Captopril vs Rifamycin Sodium: Overview
This comparison examines the pharmacological differences between **Captopril** and **Rifamycin Sodium**.
## 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; Rifamycin Sodium — N/A.
## Chemical Properties
**Molecular Formula**: Captopril — C9H15NO3S; Rifamycin Sodium — N/A.
**Molecular Weight**: Captopril — 217.2850 g/mol; Rifamycin Sodium — N/A.
**Type**: Captopril — Small molecule; Rifamycin Sodium — Small molecule.