Omeprazole vs Tamoxifen

## Omeprazole vs Tamoxifen: Overview

This comparison examines the pharmacological differences between **Omeprazole** and **Tamoxifen**.

## Mechanism of Action

**Omeprazole**: Proton pump inhibitor that irreversibly blocks H+/K+-ATPase.

**Tamoxifen**: Selective estrogen receptor modulator (SERM).

## Pharmacokinetics

**Half-life**: Omeprazole — 0.5-1 hour; Tamoxifen — 5-7 days.

## Chemical Properties

**Molecular Formula**: Omeprazole — C17H19N3O3S; Tamoxifen — C26H29NO.

**Molecular Weight**: Omeprazole — 345.4170 g/mol; Tamoxifen — 371.5150 g/mol.

**Type**: Omeprazole — Small molecule; Tamoxifen — Small molecule.