Gaviscon Double Action Mint Suspension is a 300ml oral medication that provides fast and effective relief from heartburn and indigestion. The mint-flavored formula contains sodium alginate, sodium bicarbonate, and calcium carbonate to create a protective barrier that lasts up to 4 hours. This medication works through a dual mechanism of action - it forms a protective layer on top of stomach contents to prevent acid reflux while also neutralizing excess stomach acid. The mint flavor makes it more palatable. The 300ml bottle comes with a measuring cap for accurate dosing. As this is a medication, please consult the package insert or your healthcare provider for proper dosage instructions and precautions.