Hello doctors, I am taking montelukast sodium and levocetirizine hydrochloride (brand name Jaylak-L) for past 6-7 months for my allergy. I used to get cold frequently due to allergies. So doctor prescribed me this medicine. Nowadays I am not getting allergic cold. But I feel abdominal pain for few weeks now. Most of the times pain on the upper sides-both left and right. Sometimes it stays for few mins , sometimes few hours. It's mild constant pain. I had full body checkup 8 months back and all reports are normal including abdominal scan. Is there any possibility that this could be due to this medication? Can I safely stop this tablet? Please advise.