Nalcrom, known generically as sodium cromoglicate, is a medication primarily used in the management and prevention of allergic conditions, such as asthma, allergic rhinitis, and food allergies. It functions as a mast cell stabilizer, inhibiting the release of histamine and other inflammatory mediators from the mast cells, thereby preventing the allergic reaction from escalating. Nalcrom is available in various forms, including inhalers for asthma, nasal sprays for allergic rhinitis, and oral capsules for systemic allergic conditions. It is often recommended for patients seeking a preventative approach to managing their allergies, and its efficacy is maximized when used regularly as directed by a healthcare provider.