Metformin vs Tamoxifen

## Metformin vs Tamoxifen: Overview

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

## Mechanism of Action

**Metformin**: Activates AMP-activated protein kinase, decreasing hepatic glucose production.

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

## Pharmacokinetics

**Half-life**: Metformin — 4-9 hours; Tamoxifen — 5-7 days.

## Chemical Properties

**Molecular Formula**: Metformin — C4H11N5; Tamoxifen — C26H29NO.

**Molecular Weight**: Metformin — 129.1640 g/mol; Tamoxifen — 371.5150 g/mol.

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