Minocromil is primarily used as a mast cell stabilizer in the treatment of allergic conditions. It works by preventing the release of histamine and other inflammatory mediators from mast cells, which helps in reducing symptoms associated with allergies such as itching, redness, and swelling. This makes it effective in managing conditions like allergic conjunctivitis, where it can be applied topically to the eyes to alleviate discomfort. Additionally, it has been explored for its potential in treating asthma by inhibiting bronchoconstriction and inflammation in the airways, although its use in this area is less common compared to other mast cell stabilizers. Its anti-inflammatory properties also make it a candidate for research in other inflammatory disorders, though further studies are needed to fully establish its efficacy in these applications.