Montrago - LC Home Montrogo - LC Enquire Now Montrago - LC In the management of asthma Montelukast alone may not be sufficient.In allergic rhibitis Levocetirizine alone may not give desired result.In persistant AR (allergic rhinitis) and Asthma the combination of Montelukast and levocetirizine is. more effective than monotherapy I