About Montelukast:
- It is an oral medication approved to be prescribed daily for long-term use as a “preventer” or “controller” of asthma attacks in adults and children at least 2 years old.
- Montelukast is also used to prevent bronchospasm (breathing difficulties)during exercise in adults and children 6 years of age and older.
- It is also used to help control the symptoms of allergies such as sneezing, stuffy, runny, and itchy nose.
- Developed by Merck and Co. (an American multinational pharmaceutical company), Montelukast was approved by the U.S. Food and Drug Administration (FDA) in 1998 and marketed under the brand name ‘Singulair’.
- It helps improve asthma symptoms by blocking substances in the body called leukotrienes that cause inflammation and swelling.
- In 2020, the U.S. FDA added a ‘black box warning’ to montelukast, and the Medicines and Healthcare Products Regulatory Agency, U.K., issued a health warning saying the drug could cause serious neuropsychiatric adverse effects.
Q1: What is Asthma?
Asthma is a major noncommunicable disease (NCD), affecting both children and adults, and is the most common chronic disease among children. Inflammation and narrowing of the small airways in the lungs cause asthma symptoms, which can be any combination of cough, wheeze, shortness of breath and chest tightness.
Last updated on August, 2026
→ UPSC Mains 2026 will be conducted on 21st, 22nd, 23rd, 29th and 30th August 2026.
→ Check out the latest UPSC Syllabus 2026 here.
→ UPSC Mains Admit Card 2026 is expected to be released soon at upsc.gov.in or upsconline.nic.in
→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2027 for structured answer writing practice, expert evaluation, and exam-oriented feedback.
→ Join Vajiram & Ravi’s UPSC Mentorship Program 2027 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.
→ Go through the UPSC Mains Previous Year Papers to enhance your preparation.
→ Download UPSC Mains Essay Paper 2025, UPSC Mains GS Paper-I 2025, UPSC Mains GS Paper-II 2025, UPSC Mains GS Paper-III 2025, UPSC Mains GS Paper-IV 2025, UPSC Mains English (Compulsory) Paper 2025, UPSC Mains Hindi (Qualifying) Paper 2025 here.
→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.
→ UPSC Calendar 2027 has been released.
→ Also check Best UPSC Coaching in India







