Phenytoin vs Sitagliptin

## Phenytoin vs Sitagliptin: Overview

This comparison examines the pharmacological differences between **Phenytoin** and **Sitagliptin**.

## Mechanism of Action

**Phenytoin**: Sodium channel blocker stabilizing inactive state.

**Sitagliptin**: DPP-4 inhibitor increasing incretin levels.

## Pharmacokinetics

**Half-life**: Phenytoin — 22 hours; Sitagliptin — 12.4 hours.

## Chemical Properties

**Molecular Formula**: Phenytoin — C15H12N2O2; Sitagliptin — C16H15F6N5O.

**Molecular Weight**: Phenytoin — 252.2680 g/mol; Sitagliptin — 407.3140 g/mol.

**Type**: Phenytoin — Small molecule; Sitagliptin — Small molecule.