Atorvastatin vs Cetirizine
## Atorvastatin vs Cetirizine: Overview
This comparison examines the pharmacological differences between **Atorvastatin** and **Cetirizine**.
## Mechanism of Action
**Atorvastatin**: Competitive inhibitor of HMG-CoA reductase.
**Cetirizine**: Second-generation H1 antihistamine.
## Pharmacokinetics
**Half-life**: Atorvastatin — 14 hours; Cetirizine — 6.5-10 hours.
## Chemical Properties
**Molecular Formula**: Atorvastatin — C33H35FN2O5; Cetirizine — C21H25ClN2O3.
**Molecular Weight**: Atorvastatin — 558.6400 g/mol; Cetirizine — 388.8900 g/mol.
**Type**: Atorvastatin — Small molecule; Cetirizine — Small molecule.