Phenytoin vs Trastuzumab

## Phenytoin vs Trastuzumab: Overview

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

## Mechanism of Action

**Phenytoin**: Sodium channel blocker stabilizing inactive state.

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

## Pharmacokinetics

**Half-life**: Phenytoin — 22 hours; Trastuzumab — 28 days.

## Chemical Properties

**Molecular Formula**: Phenytoin — C15H12N2O2; Trastuzumab — N/A.

**Molecular Weight**: Phenytoin — 252.2680 g/mol; Trastuzumab — N/A.

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