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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">jsms</journal-id><journal-title-group><journal-title xml:lang="ru">Journal of Siberian Medical Sciences</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Siberian Medical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2542-1174</issn><publisher><publisher-name>Federal state budgetary educational institution of higher education "Novosibirsk state medical university" of  Ministry of Health of the Russian Federation (FSBEI HE NSMU MOH Russia)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31549/2542-1174-2026-10-1-73-84</article-id><article-id custom-type="elpub" pub-id-type="custom">jsms-1324</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Исследование возможности получения твердых дисперсий триметазидина дигидрохлорида пролонгированного высвобождения</article-title><trans-title-group xml:lang="en"><trans-title>Investigation of the possibility of obtaining prolonged-release solid dispersions of trimetazidine dihydrochloride</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9651-2913</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Альрухаие</surname><given-names>Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Alrouhayyah</surname><given-names>R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Альрухаие Раним – ассистент кафедры общей фармацевтической и биомедицинской технологии Медицинского института; кафедра аналитической и пищевой химии, факультет фармаци</p><p>117198, г. Москва, ул. МиклухоМаклая, 6;  Дамаск </p></bio><bio xml:lang="en"><p>Ranim Alrouhayyah – Assistant, Department of General Pharmaceutical and Biomedical Technology, Medical Institute; Department of Analytical and Food Chemistry, Faculty of Pharmacy</p><p>6, Miklukho-Maklaya str., Moscow, 117198; Damascus </p></bio><email xlink:type="simple">alrukhaie-r@rudn.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7333-2263</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Суслина</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Suslina</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Суслина Светлана Николаевна – д-р фармацевт. наук, доцент, заведующий кафедрой общей фармацевтической и биомедицинской технологии Медицинского института</p><p>117198, г. Москва, ул. МиклухоМаклая, 6</p></bio><bio xml:lang="en"><p>Svetlana N. Suslina – Dr. Sci. (Pharmaceut.), Associate Professor, Head, Department of General Pharmaceutical and Biomedical Technology, Medical Institute</p><p>Moscow </p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО «Российский университет дружбы народов имени Патриса Лумумбы» (РУДН) ; Университет Дамаска</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peoples’ Friendship University of Russia named after Patrice Lumumba ; Damasсus University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Университет Дамаска</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Peoples’ Friendship University of Russia named after Patrice Lumumba</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>29</day><month>03</month><year>2026</year></pub-date><volume>0</volume><issue>1</issue><fpage>73</fpage><lpage>84</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Альрухаие Р., Суслина С.Н., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Альрухаие Р., Суслина С.Н.</copyright-holder><copyright-holder xml:lang="en">Alrouhayyah R., Suslina S.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://jsms.elpub.ru/jour/article/view/1324">https://jsms.elpub.ru/jour/article/view/1324</self-uri><abstract><p>В в е д е н и е . Лекарственные формы с пролонгированным высвобождением предназначены для минимизации проблем традиционных лекарственных форм, таких как колебания концентрации препарата в плазме крови и необходимость частого дозирования. Триметазидина дигидрохлорид (ТМД), антиангинальный препарат, является кандидатом для создания лекарственных форм пролонгированного высвобождения, хотя это достаточно сложная задача из-за его высокой растворимости в воде.Ц е л ь . Изучить возможность получения твердых дисперсий (ТД) ТМД с пролонгированным высвобождением с использованием различных пропорций Eudragit® RSPO или POLYOX™ WSR coagulant в качестве полимеров, замедляющих высвобождение действующих веществ.М а т е р и а л ы и м е т о д ы . ТД в соотношениях активная фармацевтическая субстанция (АФС) : полимер 1:2, 1:4 и 1:8 были получены методом удаления растворителя – изопропилового спирта и оценивались по таким характеристикам, как однородность содержания АФС, сыпучесть и прессуемость, потеря в массе при высушивании, растворение. Были проведены также рентгенофазовый анализ и микроскопическое исследование.Р е з у л ь т а т ы . АФС была равномерно распределена в приготовленных ТД, а ее содержание варьировало в диапазоне 96,91– 103,16 %. Потеря в массе при высушивании составила 1,08–2,24 %, сыпучесть и прессуемость имели степень от хорошей до отличной. Скорость растворения снижалась за счет увеличения доли полимера, с возможностью увеличить время высвобождения препарата до 17 ч с помощью Eudragit® RSPO. Однако в ТД, приготовленных с POLYOX™ WSR coagulant, не удалось обеспечить профиль пролонгированного высвобождения. Рентгенофазовый анализ и микроскопическое исследование показали образование ТД, в которых молекулы АФС диспергируются в полимере.З а к л ю ч е н и е . Методом удаления растворителя с использованием подходящего полимера в определенных пропорциях возможно получить ТД водорастворимой AФС – ТМД с пролонгированным высвобождением с характеристиками, необходимыми для проведения дальнейших фармацевтических исследований.</p></abstract><trans-abstract xml:lang="en"><p>I n t r o d u c t i o n . Prolonged-release formulations are designed to minimize the problems of traditional dosage forms, such as fluctuations in plasma concentration of a drug and the need for frequent dosing. Trimetazidine dihydrochloride (TMD), an antianginal drug, is a suitable candidate to develop prolonged-release formulations, although this is a rather challenging task due to its high water solubility.A i m . To investigate the possibility of preparing prolonged-release solid dispersions (SDs) of TMD using different ratios of Eudragit® RSPO or POLYOX™ WSR coagulant as polymers that prolong the drug release.M a t e r i a l s a n d m e t h o d s . SD variants with active pharmaceutical ingredient (API) to polymer ratios of 1:2, 1:4, and 1:8 were prepared by the solvent (isopropanol) evaporation method, and were evaluated on such characteristics as: API content uniformity, flowability and compressibility, weight loss on drying, dissolution. X-ray diffraction analysis and microscopy were also performed.R e s u l t s . The API was evenly distributed in the SDs prepared, and its content ranged from 96,91 to 103,16%. The weight loss on drying was 1,08–2,24%, the flowability and compressibility ranged from good to excellent. The dissolution rate was reduced due to an increase in the proportion of polymer, with the possibility of extending the drug release to 17 h using Eudragit® RSPO. However, it was not possible to obtain а prolonged-release profile in SDs prepared with POLYOXTM WSR coagulant. The X-ray diffraction analysis and microscopic sexamination showed the formation of SDs, in which the API is dispersed within the polymer.C o n c l u s i o n . By the solvent evaporation method using a suitable polymer in suitable proportions SD of water-soluble API – prolonged-release TMD – can be obtained with the characteristics required for further pharmaceutical investigation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>триметазидина дигидрохлорид</kwd><kwd>водорастворимая активная фармацевтическая субстанция</kwd><kwd>твердые дисперсии</kwd><kwd>пролонгированное высвобождение</kwd><kwd>Eudragit® RSPO</kwd><kwd>POLYOX™ WSR coagulant</kwd></kwd-group><kwd-group xml:lang="en"><kwd>trimetazidine dihydrochloride</kwd><kwd>water-soluble active pharmaceutical substance</kwd><kwd>solid dispersions</kwd><kwd>prolonged release</kwd><kwd>Eudragit® RSPO</kwd><kwd>POLYOX™ WSR coagulant</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Bezuglov E., Zholinsky A., Shoshorina M. et al. 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