MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Indigestion tablet dissolving in water. This is an Alka-Seltzer tablet. It is a combination of aspirin, sodium bicarbonate and citric acid. It is designed to treat pain while at the same time neutralising excess stomach acid. The tablet dissolves rapidly in water, and the acid and bicarbonate react to form carbon dioxide gas.
Model release not required. Property release not required.