Promethazine vs Sumatriptan

## Promethazine vs Sumatriptan: Overview

This comparison examines the pharmacological differences between **Promethazine** and **Sumatriptan**.

## Mechanism of Action

**Sumatriptan**: Selective 5-HT1B/1D receptor agonist.

## Pharmacokinetics

**Half-life**: Promethazine — N/A; Sumatriptan — 2.5 hours.

## Chemical Properties

**Molecular Formula**: Promethazine — N/A; Sumatriptan — C14H21N3O2S.

**Molecular Weight**: Promethazine — N/A; Sumatriptan — 295.4020 g/mol.

**Type**: Promethazine — Small molecule; Sumatriptan — Small molecule.