AcidRescue SyrupAcidity syrup Hyperacidity, also known as acid dyspepsia simply means increase of acid volume in the stomach. The human stomach contains gastric glands that secrets hydrochloric acid which is necessary for the digestion of foods. When the stomach contains an excessive amount of hydrochloric acid, then the condition is called as hyperacidity or acid dyspepsia. Hyperacidity can be caused by various factors, including spicy, fatty, or acidic foods.