Ultra HPLC Method for Fixed Dose Combination of Azilsartan Medoxomil and Chlorthalidone: Identification and in silico Toxicity Prediction of Degradation Products
- Authors: Samanthula G.1, Swain D.1, Sahu G.2, Bhagat S.1, Bharatam P.V.1
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Affiliations:
- National Institute of Pharmaceutical Education and Research (NIPER)
- United States Pharmacopeia (USP) India Pvt. Ltd.
- Issue: Vol 73, No 6 (2018)
- Pages: 560-569
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/183058
- DOI: https://doi.org/10.1134/S1061934818060138
- ID: 183058
Cite item
Abstract
The fixed dose combination of azilsartan medoxomil potassium and chlorthalidone has been introduced for the effective treatment of hypertension. In the present work a rapid, simple and accurate stability indicating ultra HPLC assay method has been developed. The separation of azilsartan medoxomil, chlorthalidone and their degradation products were accomplished on an Acquity UPLC BEH C18 (100 mm × 2.1 mm, 1.7 μm) column using mobile phase combination of 0.02% trifluoroacetic acid in water and acetonitrile in gradient mode. The forced degradation products were identified using liquid chromatography‒electrospray ionisation-quadrupole time of flight-tandem mass spectrometry (LC‒ESIQTOF–MS/MS) and accurate mass experiments. The in silico toxicities of the degradation products for both the drugs were evaluated. The proposed method was validated as per the ICH Q2 (R1) guideline for selectivity, linearity, precision, accuracy and robustness.
About the authors
Gananadhamu Samanthula
National Institute of Pharmaceutical Education and Research (NIPER)
Author for correspondence.
Email: gana@niperhyd.ac.in
India, Balanagar, Hyderabad, Telangana
Debasish Swain
National Institute of Pharmaceutical Education and Research (NIPER)
Email: gana@niperhyd.ac.in
India, Balanagar, Hyderabad, Telangana
Gayatri Sahu
United States Pharmacopeia (USP) India Pvt. Ltd.
Email: gana@niperhyd.ac.in
India, Hyderabad, Telangana
Shweta Bhagat
National Institute of Pharmaceutical Education and Research (NIPER)
Email: gana@niperhyd.ac.in
India, SAS Nagar, Mohali, Punjab
P. V. Bharatam
National Institute of Pharmaceutical Education and Research (NIPER)
Email: gana@niperhyd.ac.in
India, SAS Nagar, Mohali, Punjab