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Using a mobile phase composed of acetonitrile, methanol, and water (50:40:10, v\/v\/v), with the pH adjusted to 4.6 with 0.1\u2009M phosphoric acid. The mobile phase was filtered, degassed, and pumped at a flow rate of 1.0\u2009mL\/min. Detection was performed at 245\u2009nm. The proposed method was validated with respect to specificity, linearity, limit of detection (LOD) and limit of quantification (LOQ), interday and intraday precision, robustness, and accuracy. The retention times for TBZ and LEV were found to be about 3.116 and 1.385\u2009min, respectively. Calibration plots were linear with correlation coefficient of 0.9999 in the concentration range of 200\u2013800 and 150\u2013600\u2009\u03bcg\/mL for TBZ and LEV, respectively. The method was verified to be stability indicating by separating the active ingredients from their stressed testing degradation products. The procedure proved acceptable robustness to variations in flow rate, wavelength, and column temperature. The method was conveniently used for the analysis of TBZ and LEV in oral suspension.<\/jats:p>","DOI":"10.1155\/ianc\/3480511","type":"journal-article","created":{"date-parts":[[2026,5,25]],"date-time":"2026-05-25T05:49:14Z","timestamp":1779688154000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Stability\u2010Indicating RP\u2010HPLC Method for Simultaneous Determination of Triclabendazole and Levamisole in Oral Suspension Formulation"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6769-812X","authenticated-orcid":false,"given":"Abdalla Ahmed","family":"Elbashir","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-8948-1557","authenticated-orcid":false,"given":"Khalid Malik M.","family":"Hamid","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,5,24]]},"reference":[{"key":"e_1_2_9_1_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jchromb.2006.07.046"},{"key":"e_1_2_9_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.parint.2020.102063"},{"key":"e_1_2_9_3_2","doi-asserted-by":"publisher","DOI":"10.2174\/1389557519666191122125453"},{"key":"e_1_2_9_4_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja01468a052"},{"key":"e_1_2_9_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.chroma.2021.462068"},{"key":"e_1_2_9_6_2","doi-asserted-by":"publisher","DOI":"10.1186\/s13071-018-2965-7"},{"key":"e_1_2_9_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.cvfa.2019.12.002"},{"key":"e_1_2_9_8_2","doi-asserted-by":"publisher","DOI":"10.1093\/trstmh\/trz093"},{"key":"e_1_2_9_9_2","doi-asserted-by":"publisher","DOI":"10.1358\/dot.2019.55.12.3058861"},{"key":"e_1_2_9_10_2","volume-title":"Model List of Essential Medicines","author":"WHO","year":"2015"},{"key":"e_1_2_9_11_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1751-0813.2002.tb11303.x"},{"key":"e_1_2_9_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.exppara.2013.10.010"},{"key":"e_1_2_9_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/s0304-4017(01)00460-5"},{"key":"e_1_2_9_14_2","first-page":"24","article-title":"Efficacy of Levamisole and Triclabendazole Against Gastrointestinalnematodes Antl Trematodes in Crossbred Cows","volume":"25","author":"Islam N.","year":"2005","journal-title":"Indian Journal of Veterinary Medicine"},{"key":"e_1_2_9_15_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12639-021-01422-w"},{"key":"e_1_2_9_16_2","volume-title":"The United States Pharmacopoeia 28\u2013National Formulary 23; United States Pharmacopoeial Convention","author":"United States Pharmacopeial Convention","year":"2003"},{"key":"e_1_2_9_17_2","first-page":"1899","volume-title":"European Pharmacopoeia","author":"CE","year":"2000"},{"key":"e_1_2_9_18_2","volume-title":"British Pharmacopoeia","author":"Stationary Office","year":"2003"},{"key":"e_1_2_9_19_2","first-page":"128","article-title":"Spectrophotometric Determination of Triclabendazole by Acid Dye Complexation Method in Bulk and Pharmaceutical Formulation","volume":"02","author":"Nesrin K. 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