Montair FX tablet, manufactured by Cipla Ltd, combines fexofenadine and montelukast to treat allergic reactions and asthma. Fexofenadine alleviates symptoms like runny nose and itching, while montelukast prevents asthma attacks. Dosage varies by age and condition, with potential side effects including headache and allergic reactions; safety during pregnancy is uncertain, requiring consultation with a doctor.