Trastuzumab vs Trimethoprim

## Trastuzumab vs Trimethoprim: Overview

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

## Mechanism of Action

**Trastuzumab**: Anti-HER2 monoclonal antibody inhibiting receptor signaling.

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

## Pharmacokinetics

**Half-life**: Trastuzumab — 28 days; Trimethoprim — 8-10 hours.

## Chemical Properties

**Molecular Formula**: Trastuzumab — N/A; Trimethoprim — C14H18N4O3.

**Molecular Weight**: Trastuzumab — N/A; Trimethoprim — 290.3180 g/mol.

**Type**: Trastuzumab — Antibody; Trimethoprim — Small molecule.