Indokast 10 mg Tablets – Asthma & Allergy ReliefIndokast 10 mg Tablets Montelukast for Asthma and Allergy Relief Indokast 10 mg Tablets contain Montelukast, a leukotriene receptor antagonist (LTRA) used for the prevention and long term treatment of asthma and allergic rhinitis. Montelukast works by blocking the action of leukotrienes chemicals that cause airway narrowing, inflammation, and mucus production. By inhibiting these reactions, Indokast helps prevent breathing difficulties and controls