Ranitidine vs Trimethoprim

## Ranitidine vs Trimethoprim: Overview

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

## Mechanism of Action

**Ranitidine**: Competitive H2 receptor antagonist.

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

## Pharmacokinetics

**Half-life**: Ranitidine — 2-3 hours; Trimethoprim — 8-10 hours.

## Chemical Properties

**Molecular Formula**: Ranitidine — C13H22N4O3S; Trimethoprim — C14H18N4O3.

**Molecular Weight**: Ranitidine — 314.4050 g/mol; Trimethoprim — 290.3180 g/mol.

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