Finasteride vs Trimethoprim

## Finasteride vs Trimethoprim: Overview

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

## Mechanism of Action

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

**Trimethoprim**: Dihydrofolate reductase inhibitor (bacterial selective).

## Pharmacokinetics

**Half-life**: Finasteride — 5-6 hours; Trimethoprim — 8-10 hours.

## Chemical Properties

**Molecular Formula**: Finasteride — C23H36N2O2; Trimethoprim — C14H18N4O3.

**Molecular Weight**: Finasteride — 372.5490 g/mol; Trimethoprim — 290.3180 g/mol.

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