SAN ANTONIO — A fixed-dose combination of montelukast plus levocetirizine was safe and effective for the treatment of perennial allergic rhinitis and asthma compared with montelukast alone ...

IRR-401 is a proprietary combination of levocetirizine and montelukast. Levocetirizine, a third-generation antihistamine, and montelukast, a leukotriene receptor antagonist, exhibit remarkable ...

Asthma inhaler and medicine, pills Montelukast plus levocetirizine demonstrated a significant reduction in mean daytime nasal symptom scores compared with montelukast monotherapy. SAN ANTONIO ...