Cigarette Smoking Influences Montelukast Pharmacokinetics in Jordanian Population

Authors

  • Rana Said Pharmacological and Diagnostic Research Centre (PDRC), Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, Jordan
  • Rana Abutaima Faculty of Pharmacy, Zarqa University, Zarqa, Jordan
  • Basel Arafat Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, UK
  • Yasser I. Kandil Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City, Cairo, Egypt; Department of Biochemistry, Faculty of Pharmacy, Sinai University–Kantara Branch, Ismailia, Egypt
  • Lidia K. Al-Halaseh Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mutah University, Al-Karak, Jordan
  • Khaldun M. Al Azzam Department of Chemistry, School of Science, The University of Jordan, Amman, 11942, Jordan
  • Tawfiq Arafat Jordan Center for Pharmaceutical Research (JCPR), Amman, Jordan

DOI:

https://doi.org/10.35516/jjps.v18i3.3216

Keywords:

Montelukast Pharmacokinetics, Smoking, Bioequivalence, Singulair®, Montelukast Bioequivalence, Enzyme induction

Abstract

 

Background: Montelukast is one of the main therapeutic agents used for asthma management. Its therapeutic effectiveness is greatly influenced by the expression of metabolic enzymes and/or transporters involved in its disposition.

Objectives: To assess the effect of smoking on montelukast pharmacokinetics in four bioequivalence studies against the reference drug Singulair®.

Methodology: Data were extracted from bioequivalence studies to compare 10 mg generic Montelukast to Singulair® the originator. Primary pharmacokinetic parameters, maximum plasma concentration (Cmax) and area under the curve (AUC0-inf and AUC0-t) were calculated using Kinetica®. Analysis of Variance was performed to compare montelukast pharmacokinetics between smokers and non-smokers. Statistical significance was set at P ≤ 0.05.

Results: Mean± SD montelukast Cmax (ng/mL) was 397.1 ± 125.7 in non-smokers compared to 352.8± 133.9 in smokers. Significant alterations in montelukast Cmax (P= 0.0206), AUC 0-t (ng. h/L) 2335 ± 111, P= 0.0016, and AUC 0-inf (ng. h/L) 2509 ± 1163, P= 0.0015 were observed in the study participants who are smokers.

Conclusion: Despite the minimal fold-decrease in montelukast pharmacokinetic parameters in smokers compared to non-smokers, this might have a profound clinical impact on the therapeutic effectiveness of montelukast in patients.

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Published

2025-09-24

How to Cite

Said, R., Abutaima , R., Arafat, B., Kandil, Y., Al-Halaseh, L., Al Azzam, K. ., & Arafat, T. (2025). Cigarette Smoking Influences Montelukast Pharmacokinetics in Jordanian Population. Jordan Journal of Pharmaceutical Sciences, 18(3), 672–681. https://doi.org/10.35516/jjps.v18i3.3216

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