Norfloxacin vs Sildenafil

## Norfloxacin vs Sildenafil: Overview

This comparison examines the pharmacological differences between **Norfloxacin** and **Sildenafil**.

## Mechanism of Action

**Norfloxacin**: Second-generation fluoroquinolone inhibiting bacterial DNA gyrase and topoisomerase IV.

**Sildenafil**: Selective PDE5 inhibitor increasing cGMP.

## Pharmacokinetics

**Half-life**: Norfloxacin — 3-4 hours; Sildenafil — 4 hours.

## Chemical Properties

**Molecular Formula**: Norfloxacin — C16H18FN3O3; Sildenafil — C22H30N6O4S.

**Molecular Weight**: Norfloxacin — 319.3310 g/mol; Sildenafil — 474.5800 g/mol.

**Type**: Norfloxacin — Small molecule; Sildenafil — Small molecule.