Methotrexate vs Metoprolol
## Methotrexate vs Metoprolol: Overview
This comparison examines the pharmacological differences between **Methotrexate** and **Metoprolol**.
## Mechanism of Action
**Methotrexate**: Dihydrofolate reductase inhibitor.
**Metoprolol**: Selective beta-1 adrenergic receptor blocker.
## Pharmacokinetics
**Half-life**: Methotrexate — 3-10 hours; Metoprolol — 3-7 hours.
## Chemical Properties
**Molecular Formula**: Methotrexate — C20H22N8O5; Metoprolol — C15H25NO3.
**Molecular Weight**: Methotrexate — 454.4400 g/mol; Metoprolol — 267.3640 g/mol.
**Type**: Methotrexate — Small molecule; Metoprolol — Small molecule.