Acyclovir vs Captopril

## Acyclovir vs Captopril: Overview

This comparison examines the pharmacological differences between **Acyclovir** and **Captopril**.

## Mechanism of Action

**Acyclovir**: Guanosine analogue inhibiting viral DNA polymerase.

**Captopril**: First orally active ACE inhibitor; contains thiol group that binds zinc at ACE active site.

## Pharmacokinetics

**Half-life**: Acyclovir — 2.5-3.3 hours; Captopril — 1.9 hours.

## Chemical Properties

**Molecular Formula**: Acyclovir — C8H11N5O3; Captopril — C9H15NO3S.

**Molecular Weight**: Acyclovir — 225.2050 g/mol; Captopril — 217.2850 g/mol.

**Type**: Acyclovir — Small molecule; Captopril — Small molecule.