Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Randomized Controlled Trial
. 2021 Jul 1;49(4):15-25.
doi: 10.15586/aei.v49i4.89. eCollection 2021.

Bioavailability assessment of fexofenadine and montelukast in a fixed-dose combination tablet versus the components administered simultaneously

Piñeyro-Garza Everardo  1 , Gómez-Silva Magdalena  2 , Gamino-Peña Maria Elena  2 , Cohen-Muñoz Vanessa  3 , Sánchez-Casado Gabriela  3
Affiliations
Randomized Controlled Trial

Bioavailability assessment of fexofenadine and montelukast in a fixed-dose combination tablet versus the components administered simultaneously

Piñeyro-Garza Everardo et al. Allergol Immunopathol (Madr). .

Abstract

Introduction and objectives: Allergic rhinitis is a condition with high global prevalence most effectively treated with antihistamines and antileukotrienes. This study aimed to evaluate the bioequivalence of fexofenadine and montelukast in a fixed-dose combination tablet versus the components administered simultaneously.

Materials and methods: An open, randomized, 2×2 crossover study was performed in 78 healthy volunteers. Fexofenadine-montelukast tablets containing 120 mg and 10 mg, respectively, were used as the test treatment, and 120 mg fexofenadine tablets and 10 mg montelukast tablets were used as the reference treatment. Concentrations of fexofenadine and montelukast in plasma were determined by protein precipitation and analysis by liquid chromatography/mass spectrometry or liquid chromatography tandem mass spectrometry.

Results: The 90% confidence intervals (CIs) obtained for fexofenadine were 87.612-102.144 for area under the curve of the plasma concentration after administration to the last concentration (AUC0-t), 88.471-102.282 for the AUC of the plasma concentration extrapolated to infinity (AUC0-∞), and 91.413-108.544 for the maximum plasma concentration (Cmax). For montelukast, they were 96.418-108.416 for AUC0-t, 93.273-106.642 for AUC0-∞ and 94.749-110.178 for Cmax. The ratio and CIs of the values subjected to logarithmic transformation for each parameter were within the range of acceptability of 80%-125%, demonstrating the bioequivalence of the combined fixed-dose tablet to the components administered separately at the same doses. No adverse events were recorded during the study.

Conclusions: This study has shown the bioequivalence of the combined fixed-dose tablet, which may be considered a new alternative for the treatment of allergic rhinitis.

Keywords: allergic rhinitis; antihistamine-antileukotriene; bioequivalence; fexofenadine; fixed-dose combination; montelukast.

PubMed Disclaimer

Conflict of interest statement

The authors VC-M and GS-C are employees of Sanofi Aventis de Mexico S.A. de C.V.No conflict of interest from iPharma members.

References

    1. 1. Lehman JM, Blaiss MS. Selecting the optimal oral antihistamine for patients with allergic rhinitis. Drugs. 2006;66:2309–2319. 10.2165/00003495-200666180-00004 - DOI
    1. 2. Cingi C, Gunhan K, Gage-White L, Unlu H. Efficacy of leukotriene antagonists as concomitant therapy in allergic rhinitis. Laryngoscope. 2010;120:1718–1723. 10.1002/lary.20941 - DOI
    1. 3. Çobanoğlu B, Toskala E, Ural A, Cingi C. Role of leukotriene antagonists and antihistamines in the treatment of allergic rhinitis. Curr Allergy Asthma Rep. 2013;13:203–208. 10.1007/s11882-013-0341-4 - DOI
    1. 4. Lagos JA, Marshall GD. Montelukast in the management of allergic rhinitis. Ther Clin Risk Manag. 2007;3:327–332. 10.2147/tcrm.2007.3.2.327 - DOI
    1. 5. Simpson K, Jarvis B. Fexofenadine: a review of its use in the management of seasonal allergic rhinitis and chronic idiopathic urticaria. Drugs. 2000;59:301–321. 10.2165/00003495-200059020-00020 - DOI

Publication types