It is used in pharmaceutical formulations for conditions such as allergic conjunctivitis allergic rhinitis and asthma prevention depending on the formulation and approved indication. The hydrate form indicates that water is incorporated into the compounds crystalline structure.

Its main purpose is to prevent or reduce symptoms associated with allergic conditions by stabilizing mast cells. It is primarily used for preventive treatment rather than for immediate relief of acute allergic attacks.

Cromolyn Disodium Salt Hydrate also known as sodium cromoglicate is a medication with mast cell-stabilizing properties. It helps prevent the release of substances such as histamine that contribute to allergic reactions.