Levodopa vs Metformin

## Levodopa vs Metformin: Overview

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

## Mechanism of Action

**Levodopa**: Metabolic precursor of dopamine that crosses the BBB.

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

## Pharmacokinetics

**Half-life**: Levodopa — 1.5 hours; Metformin — 4-9 hours.

## Chemical Properties

**Molecular Formula**: Levodopa — C9H11NO4; Metformin — C4H11N5.

**Molecular Weight**: Levodopa — 197.1880 g/mol; Metformin — 129.1640 g/mol.

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