Montair-LC Tablet is a combination medicine that contains two active ingredients, Montelukast and Levocetirizine. Montelukast is a leukotriene receptor antagonist that works by blocking the action of leukotrienes, which are responsible for inflammation and narrowing of the airways. Levocetirizine is an antihistamine that blocks the effects of histamine, which is released in response to allergens and causes symptoms such as itching, sneezing, and runny nose.Montair-LC Tablet is used to treat allergic symptoms such as runny nose, stuffy nose, sneezing, itching, swelling, watery eyes, and congestion or stuffiness. It also helps to reduce inflammation in the airways and make breathing easier.It is important to take this medicine in the dose and duration as advised by your doctor. The dose you are given will depend on your condition and how you respond to the medicine. You can take this medicine with or without food, but it is better to take it at a fixed time every day to maintain a consistent level of the drug in your body. You should keep taking this medicine for as long as your doctor recommends. If you stop treatment too early, your symptoms may come back, and your condition may worsen.Montair-LC Tablet may interact with other medicines you are taking, so it is essential to inform your healthcare team about all the medications you are currently using. The most common side effects of this medicine include nausea, diarrhea, vomiting, dryness in the mouth, headache, skin rash, flu-like symptoms, and fatigue. Most of these side effects are temporary and usually resolve with time. However, if you experience any severe side effects, such as difficulty breathing, chest pain, or an allergic reaction, seek medical attention immediately.This medicine may cause dizziness and sleepiness, so it is advised not to drive or operate heavy machinery until you know how this medicine affects you. Avoid drinking alcohol while taking this medicine as it can worsen your dizziness and sleepiness.Before taking this medicine, inform your doctor if you have any kidney disease or liver disease, as the dose may need to be adjusted. It is also important to inform your doctor if you are pregnant or breastfeeding, as this medicine may not be safe during pregnancy or breastfeeding.