In vitro equivalence of generic and branded amoxicillin tablet by microbiological assay method

Primadi Avianto and Mahfudz and Suharjono and Isnaeni and Christopher Paul Alderman (2020) In vitro equivalence of generic and branded amoxicillin tablet by microbiological assay method. Journal Basic and Clinical Physiology and Pharmacology, 30 (6). pp. 1-5. ISSN 2191-0286

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Official URL: https://www.degruyter.com/view/journals/jbcpp/30/6...

Abstract

Background Indonesian Ministry of Health advocate doctors, especially in government-owned healthcare facility, to prescribe generic drugs including amoxicillin. Although BPOM (the National Agency of Drug and Food Control) already guarantees that the generic amoxicillin and the branded one were interchangeable, lack of confidence in generic drugs still remains among patients, pharmacists, and doctors. This issue supported by lack of publication confirmed the therapeutic equivalence of branded and generic drugs. This study aims to evaluate and compare the in vitro microbiological assay of different generic and branded amoxicillin that are available in Indonesian market, especially those used in government-owned healthcare facilities. Methods Microbiological assays for five samples of amoxicillin tablet containing 500 mg amoxicillin available in Indonesia were determined using a method from Indonesia Pharmacopeia. Samples were coded as Products A to E. The assay was carried out by measuring the diameter of the inhibition zones in the plate agar incubated with Escherichia coli and Staphylococcus aureus. The obtained data were evaluated to determine the sample potency and compared with the amoxicillin reference standard. Results Minor and insignificant differences (p > 0.05) were found in the diameters of the inhibition zones. Potency ratio measured both in E. coli and S. aureus were all between 95% and 105%. The lowest of the tested samples were from Product C, which resulted to ratio potencies of 96.3% and 95.5% in E. coli and S. aureus, respectively. Conclusions All five samples were in the range of the acceptance criteria. Therefore, from the view of the microbiological assay, these products are in equivalence in quality and are interchangeable.

Item Type: Article
Uncontrolled Keywords: amoxicillin; generic substitution; microbiological assay
Subjects: R Medicine
R Medicine > RS Pharmacy and materia medica
Divisions: 05. Fakultas Farmasi
Creators:
CreatorsNIM
Primadi AviantoUNSPECIFIED
MahfudzUNSPECIFIED
SuharjonoNIDN0022125202
IsnaeniNIDN0013015603
Christopher Paul AldermanUNSPECIFIED
Depositing User: Mr M. Fuad Sofyan
Date Deposited: 04 Sep 2020 01:56
Last Modified: 04 Sep 2020 01:56
URI: http://repository.unair.ac.id/id/eprint/98426
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