Methotrexate vs Nicotine
## Methotrexate vs Nicotine: Overview
This comparison examines the pharmacological differences between **Methotrexate** and **Nicotine**.
## Mechanism of Action
**Methotrexate**: Dihydrofolate reductase inhibitor.
## Pharmacokinetics
**Half-life**: Methotrexate — 3-10 hours; Nicotine — N/A.
## Chemical Properties
**Molecular Formula**: Methotrexate — C20H22N8O5; Nicotine — N/A.
**Molecular Weight**: Methotrexate — 454.4400 g/mol; Nicotine — N/A.
**Type**: Methotrexate — Small molecule; Nicotine — Small molecule.