Osimertinib vs Promethazine

## Osimertinib vs Promethazine: Overview

This comparison examines the pharmacological differences between **Osimertinib** and **Promethazine**.

## Mechanism of Action

**Osimertinib**: Third-generation irreversible EGFR TKI targeting T790M resistance mutation and activating mutations.

## Pharmacokinetics

**Half-life**: Osimertinib — 48 hours; Promethazine — N/A.

## Chemical Properties

**Molecular Formula**: Osimertinib — C28H33N7O2; Promethazine — N/A.

**Molecular Weight**: Osimertinib — 499.6050 g/mol; Promethazine — N/A.

**Type**: Osimertinib — Small molecule; Promethazine — Small molecule.