Memantine vs Ranitidine

## Memantine vs Ranitidine: Overview

This comparison examines the pharmacological differences between **Memantine** and **Ranitidine**.

## Mechanism of Action

**Memantine**: Non-competitive NMDA receptor antagonist.

**Ranitidine**: Competitive H2 receptor antagonist.

## Pharmacokinetics

**Half-life**: Memantine — 60-80 hours; Ranitidine — 2-3 hours.

## Chemical Properties

**Molecular Formula**: Memantine — C12H21N; Ranitidine — C13H22N4O3S.

**Molecular Weight**: Memantine — 179.3080 g/mol; Ranitidine — 314.4050 g/mol.

**Type**: Memantine — Small molecule; Ranitidine — Small molecule.