Atorvastatin vs Captopril
## Atorvastatin vs Captopril: Overview
This comparison examines the pharmacological differences between **Atorvastatin** and **Captopril**.
## Mechanism of Action
**Atorvastatin**: Competitive inhibitor of HMG-CoA reductase.
**Captopril**: First orally active ACE inhibitor; contains thiol group that binds zinc at ACE active site.
## Pharmacokinetics
**Half-life**: Atorvastatin — 14 hours; Captopril — 1.9 hours.
## Chemical Properties
**Molecular Formula**: Atorvastatin — C33H35FN2O5; Captopril — C9H15NO3S.
**Molecular Weight**: Atorvastatin — 558.6400 g/mol; Captopril — 217.2850 g/mol.
**Type**: Atorvastatin — Small molecule; Captopril — Small molecule.