Ondansetron vs Tacrolimus

## Ondansetron vs Tacrolimus: Overview

This comparison examines the pharmacological differences between **Ondansetron** and **Tacrolimus**.

## Mechanism of Action

**Ondansetron**: Selective 5-HT3 receptor antagonist.

**Tacrolimus**: Calcineurin inhibitor binding FKBP12; suppresses IL-2 transcription.

## Pharmacokinetics

**Half-life**: Ondansetron — 3-5 hours; Tacrolimus — 12 hours.

## Chemical Properties

**Molecular Formula**: Ondansetron — C18H19N3O; Tacrolimus — C44H69NO12.

**Molecular Weight**: Ondansetron — 293.3660 g/mol; Tacrolimus — 804.0180 g/mol.

**Type**: Ondansetron — Small molecule; Tacrolimus — Small molecule.