Finasteride vs Phenytoin

## Finasteride vs Phenytoin: Overview

This comparison examines the pharmacological differences between **Finasteride** and **Phenytoin**.

## Mechanism of Action

**Finasteride**: Competitive inhibitor of 5-alpha-reductase type II.

**Phenytoin**: Sodium channel blocker stabilizing inactive state.

## Pharmacokinetics

**Half-life**: Finasteride — 5-6 hours; Phenytoin — 22 hours.

## Chemical Properties

**Molecular Formula**: Finasteride — C23H36N2O2; Phenytoin — C15H12N2O2.

**Molecular Weight**: Finasteride — 372.5490 g/mol; Phenytoin — 252.2680 g/mol.

**Type**: Finasteride — Small molecule; Phenytoin — Small molecule.