alexa In Vitro/in Vivo Correlation Of Fast Release Meenamic Acid Microspheres In Humans
ISSN: 0975-0851

Journal of Bioequivalence & Bioavailability
Open Access

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5th World Congress on Bioavailability and Bioequivalence Pharmaceutical R&D Summit
September 29-October 01, 2014 DoubleTree by Hilton Baltimore-BWI Airport, USA

Aly H Nada
ScientificTracks Abstracts: J Bioequiv Availab
DOI: 10.4172/0975-0851.S1.017
Abstract
M eenamic acid (MFA) is widely used analgesic and anti-inflammatory agent, characterized by low solubility and dissolution. Earlier it has been reported that fast-release microspheres, prepared by emulsion congealing using the ammonium salt of MFA with polyethylene glycols (PEG), enhanced the dissolution rate of MFA. The objectives of this study were to assess the bioavailability of optimized MFA microspheres (test) against Ponstan? capsule (reference) in healthy volunteers, and to establish correlation with in vitro parameters. Four subjects received the test and reference (250 mg MFA each) in a randomized crossover design, separated by one week washout period. The drug was analyzed in plasma by a specific HPLC method. The relevant pharmacokinetic parameters (C max , T max , AUC 0-12 and AUC 0-∞ ) were calculated from the plasma drug concentration-time data. The test product exhibited faster absorption (T max of 1.87?0.482 h vs. 2.14?0.20 h; C max of 5.91?0.604 vs. 3.58?0.671 μg/ml) when compared to the reference. The relative bioavailability of the test, compared to the reference was 172%. Good correlations were established between 90%-dissolution (T90) and each of the AUC 0-12 and T max , as well as between the %-drug released and plasma concentrations. The formulation of MFA microsphere with PEG improved the dissolution rate and bioavailability of MFA, as evidenced by higher C max and AUC 0-12 and AUC 0-∞ , and shorter Tmax values. Good correlations between T 90 and each of AUC 0-12 and Tmax as well as between the %-drug released and plasma concentrations were achieved
Biography
Aly H Nada attained his PhD from University of Tuebingen, Germany. He served as academic member in different countries, including Egypt, Saudi Arabia, United Emirates and currently as the Chairman of Pharmaceutics, Kuwait University. His main research interests are formulation of small molecules in the form of oral solids and topical delivery of drugs. He served as reviewer for many reputable Journals, e.g. European Journal of Pharmaceutics and Biopharmaceutics, Drug Development and Industrial Pharmacy, etc. He is a member of The American Association of Pharmaceutical Scientists (AAPS) and serves as reviewer of abstracts submitted to The Annual Meetings.
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