Phenylephrine vs Ranitidine
## Phenylephrine vs Ranitidine: Overview
This comparison examines the pharmacological differences between **Phenylephrine** and **Ranitidine**.
## Mechanism of Action
**Ranitidine**: Competitive H2 receptor antagonist.
## Pharmacokinetics
**Half-life**: Phenylephrine — N/A; Ranitidine — 2-3 hours.
## Chemical Properties
**Molecular Formula**: Phenylephrine — N/A; Ranitidine — C13H22N4O3S.
**Molecular Weight**: Phenylephrine — N/A; Ranitidine — 314.4050 g/mol.
**Type**: Phenylephrine — Small molecule; Ranitidine — Small molecule.