Guardium Acid Reflux Control 20mg Gastro Resistant Tablets provide short-term treatment of heartburn and acid reflux in adults aged 18 and over. For oral use. Swallow the tablets whole with a glass of water. Do not crush or chew. Read the package leaflet before use. Adults aged 18 and over: Take one tablet once a day. It may take 2-3 days for the tablets to have full effect. Do not take more medicine than the label tells you to. Gaviscon Guardium Acid Reflux Control 7 Pack