Acetaminophen vs Trimethoprim

## Acetaminophen vs Trimethoprim: Overview

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

## Mechanism of Action

**Acetaminophen**: Inhibits prostaglandin synthesis in the CNS and peripherally blocks pain impulse generation.

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

## Pharmacokinetics

**Half-life**: Acetaminophen — 1-4 hours; Trimethoprim — 8-10 hours.

## Chemical Properties

**Molecular Formula**: Acetaminophen — C8H9NO2; Trimethoprim — C14H18N4O3.

**Molecular Weight**: Acetaminophen — 151.1630 g/mol; Trimethoprim — 290.3180 g/mol.

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