Metformin vs Phenylephrine
## Metformin vs Phenylephrine: Overview
This comparison examines the pharmacological differences between **Metformin** and **Phenylephrine**.
## Mechanism of Action
**Metformin**: Activates AMP-activated protein kinase, decreasing hepatic glucose production.
## Pharmacokinetics
**Half-life**: Metformin — 4-9 hours; Phenylephrine — N/A.
## Chemical Properties
**Molecular Formula**: Metformin — C4H11N5; Phenylephrine — N/A.
**Molecular Weight**: Metformin — 129.1640 g/mol; Phenylephrine — N/A.
**Type**: Metformin — Small molecule; Phenylephrine — Small molecule.