Captopril vs Radium Ra 223 Dichloride
## Captopril vs Radium Ra 223 Dichloride: Overview
This comparison examines the pharmacological differences between **Captopril** and **Radium Ra 223 Dichloride**.
## 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; Radium Ra 223 Dichloride — N/A.
## Chemical Properties
**Molecular Formula**: Captopril — C9H15NO3S; Radium Ra 223 Dichloride — N/A.
**Molecular Weight**: Captopril — 217.2850 g/mol; Radium Ra 223 Dichloride — N/A.
**Type**: Captopril — Small molecule; Radium Ra 223 Dichloride — Small molecule.