Citalopram vs Trimethoprim

## Citalopram vs Trimethoprim: Overview

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

## Mechanism of Action

**Citalopram**: Selective serotonin reuptake inhibitor (SSRI); racemic mixture with escitalopram as active S-enantiomer.

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

## Pharmacokinetics

**Half-life**: Citalopram — 35 hours; Trimethoprim — 8-10 hours.

## Chemical Properties

**Molecular Formula**: Citalopram — C20H21FN2O; Trimethoprim — C14H18N4O3.

**Molecular Weight**: Citalopram — 324.3920 g/mol; Trimethoprim — 290.3180 g/mol.

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