alexa Bioequivalence of a Fixed Dose Combination of Deslorata
ISSN: 0975-0851

Journal of Bioequivalence & Bioavailability
Open Access

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Research Article

Bioequivalence of a Fixed Dose Combination of Desloratadine/Betamethasone Tablets (Oradus Beta) in Healthy Human Volunteers

Bustami R1, Khasawneh S1, Absi W1, Feddah H1, Menassa M2, Daccache E2, Taha MS3 and Kyriacos S2*

1Pharmaceutical Research Unit, Clinical Evaluation Centre, Amman, Jordan

2Research and Development Department, Pharmaline, Jdeidet-El-Metn, Lebanon

3Pharmacy Practice Department, School of Pharmacy, Lebanese American University, Byblos, Lebanon

Corresponding Author:
Kyriacos S
R&D Manager, Pharmaline, Jdeidet-El-Metn, Lebanon
Tel: 961 9 440 901
Fax: 961 9 448 418
E-mail: [email protected]

Received Date: July 22, 2016; Accepted Date: August 19, 2016; Published Date: August 30, 2016

Citation: Bustami R, Khasawneh S, Absi W, Feddah H, Menassa M, et al. (2016) Bioequivalence of a Fixed Dose Combination of Desloratadine/Betamethasone Tablets (Oradus Beta) in Healthy Human Volunteers. J Bioequiv Availab 8:233-241. doi:10.4172/jbb.1000301

Copyright: © 2016 Bustami R, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



A fixed dose combination of desloratadine, a long-acting tricyclic antihistamine with selective peripheral histamine H1 receptor antagonistic activity, and betamethasone, a glucocorticoid, can potentially provide synergistic effect in the treatment of severe allergic conditions and improve clinical outcomes. Co-administration of an anti-allergy medication and a corticosteroid is extensively used in clinical practice, either as single drug tablets or as a fixed dose combination tablet. The current study was conducted to compare the pharmacokinetics of fixed combination tablets of desloratadine and betamethasone in 40 healthy human volunteers after a single oral dose in a randomized two-period, two-treatment, and two-sequence cross-over study. The study protocol was prepared in accordance to the requirements set in the EMA guidance for conducting bioequivalence studies. Reference (Frenaler Cort 5 mg desloratadine/0.6 mg betamethasone film coated tablet, Roemmers S.A.I.C.F., Argentina) and test (Oradus β 5 mg desloratadine/0.6 mg betamethasone film coated tablet, Pharmaline, Lebanon) drugs were administered to fasted volunteers and blood samples were collected up to 72 h and assayed for desloratadine, hydroxydesloratadine metabolite and betamethasone using a validated LC-MS/MS method. The pharmacokinetic parameters AUC0-t, Cmax, Tmax, T1/2, Ke, in addition to (for betamethasone only) AUC0-∞, MRTinf, and residual area (%) were determined from plasma concentration-time profile by non-compartmental analysis method using thermos Scientific Kinetica (version 5.1). The analysis of variance did not show any significant difference between the two formulations and 90% confidence intervals fell within the acceptable range for bioequivalence (80-125%). The resulting data demonstrated that when administered as fixed dose combination, the pharmacokinetics of desloratadine and betamethasone were bioequivalent and were well-tolerated.


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