Levothyroxine vs Sitagliptin

## Levothyroxine vs Sitagliptin: Overview

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

## Mechanism of Action

**Levothyroxine**: Synthetic thyroid hormone T4 replacement.

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

## Pharmacokinetics

**Half-life**: Levothyroxine — 6-7 days; Sitagliptin — 12.4 hours.

## Chemical Properties

**Molecular Formula**: Levothyroxine — C15H11I4NO4; Sitagliptin — C16H15F6N5O.

**Molecular Weight**: Levothyroxine — 776.8700 g/mol; Sitagliptin — 407.3140 g/mol.

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