Loratadine vs Tacrolimus

## Loratadine vs Tacrolimus: Overview

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

## Mechanism of Action

**Loratadine**: Second-generation H1 antihistamine with minimal CNS effects.

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

## Pharmacokinetics

**Half-life**: Loratadine — 8 hours; Tacrolimus — 12 hours.

## Chemical Properties

**Molecular Formula**: Loratadine — C22H23ClN2O2; Tacrolimus — C44H69NO12.

**Molecular Weight**: Loratadine — 382.8800 g/mol; Tacrolimus — 804.0180 g/mol.

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