Diphenhydramine vs Pravastatin

## Diphenhydramine vs Pravastatin: Overview

This comparison examines the pharmacological differences between **Diphenhydramine** and **Pravastatin**.

## Mechanism of Action

**Diphenhydramine**: First-generation H1 antihistamine with anticholinergic properties.

**Pravastatin**: Competitive inhibitor of HMG-CoA reductase.

## Pharmacokinetics

**Half-life**: Diphenhydramine — 2-8 hours; Pravastatin — 1.8 hours.

## Chemical Properties

**Molecular Formula**: Diphenhydramine — C17H21NO; Pravastatin — C23H36O7.

**Molecular Weight**: Diphenhydramine — 255.3550 g/mol; Pravastatin — 424.5280 g/mol.

**Type**: Diphenhydramine — Small molecule; Pravastatin — Small molecule.