Montelukast Prescription: What You Need to Know

If your doctor mentioned montelukast, you probably wonder what it does and how to take it safely. In short, montelukast is a tablet that blocks leukotrienes – chemicals that cause airway swelling and mucus. That makes it handy for asthma, allergic rhinitis, and sometimes for preventing exercise‑induced breathing problems.

When Is Montelukast Usually Prescribed?

Doctors often choose montelukast for people who have trouble controlling asthma with inhalers alone, or who experience seasonal allergies that flare up their breathing. It can also help kids who have trouble using inhalers properly. If you have chronic sinus issues or nasal polyps, your clinician might add montelukast to the plan as well.

How to Take Montelukast Correctly

The standard adult dose is one 10 mg tablet taken once a day, usually in the evening. For children aged 12‑17, the same 10 mg dose applies. Kids 2‑5 years get a chewable 4 mg tablet, while those 6‑11 years get a 5 mg chewable. Swallow the tablet whole with water; the chewable form can be taken with or without food.

Stick to the same time each day. Missing a dose? Take it as soon as you remember, unless it’s almost time for the next one – then just skip the missed one. Don’t double up.

It’s a good idea to keep a short list of other meds you’re on, because montelukast can interact with certain antibiotics, antifungals, and some seizure medicines. Tell your pharmacist or doctor about every prescription, over‑the‑counter drug, and supplement you use.

Side effects are generally mild. The most common complaints are headache, stomach upset, and a dry mouth. A small number of people notice mood changes, like feeling sad or anxious. If you notice a rash, swelling, or trouble breathing, call your doctor right away – those could be signs of an allergic reaction.

One question many patients ask is whether montelukast affects bleeding risk. The drug itself isn’t known to raise bleeding chances, but if you’re already on blood‑thinners or have a bleeding disorder, let your clinician know. They can check the CRUSADE Bleeding Score to see if any extra caution is needed.

Pregnancy and breastfeeding are another common concern. Current guidelines say montelukast is probably safe, but you should still discuss it with your doctor to weigh the benefits against any unknown risks.

Finally, don’t stop the medication abruptly without talking to your provider. Even though montelukast isn’t a steroid, stopping suddenly could bring back the symptoms you were controlling.

In short, montelukast is a simple, once‑daily tablet that can smooth out asthma and allergy symptoms for many people. Keep track of your dose, watch for side effects, and keep your healthcare team in the loop about other drugs you take. With those steps, you’ll get the most benefit while staying safe.