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Characterization of mucoadhesive nasal gels containing midazolam hydrochloride prepared from Linum usitatissimum L. mucilage
Basu, Shyamoshree; Bandyopadhyay, Amal Kumar.
  • Basu, Shyamoshree; West Bengal University of Technology. NSHM College of Pharmaceutical Technology. IN
  • Bandyopadhyay, Amal Kumar; Jadavpur University. Department of Pharmaceutical Technology. Kolkata. IN
Braz. j. pharm. sci ; 47(4): 817-823, Oct.-Dec. 2011. graf, tab
Article in English | LILACS | ID: lil-618075
ABSTRACT
Nasal drug delivery systems prepared from natural materials are gaining importance in the field of pharmaceutical technology. Mucilage isolated from Linum usitatissimum L. (LUM) seeds was reported to be an effective natural mucoadhesive agent. The present study deals with a comparison of various characteristics of nasal gels containing midazolam hydrochloride (HCl) prepared from mucoadhesive agent extracted from Linum usitatissimum L. seeds and synthetic polymers like HPMC and Carbopol 934P in terms of texture profile analysis, mucoadhesive strength, and in vivo drug absorption profiles. It was observed that gels formulated with the natural mucilage showed better results than the synthetic gels in all aspects like hardness, adhesiveness, cohesiveness and mucoadhesive strength. The absolute bioavailability of midazolam hydrochloride from the natural gel was 97.55 percent whereas that of synthetic gels was 57.33 percent and 76.81 percent respectively.
RESUMO
Sistemas de liberação nasal preparados com produtos naturais estão ganhando importância no campo da tecnologia farmacêutica. A mucilagem isolada de sementes de Linum usitatissimum L. (LUM) mostrou-se agente mucoadesivo eficaz. O presente estudo trata da comparação de várias características de géis nasais contendo cloridrato de midazolam preparados com agente mucoadesivo extraído das sementes de Linum usitatissimum L. e com polímeros sintéticos, como HPMC e Carbopol 943P, com relação ao perfil de textura, força mucoadesiva e perfis de absorção do fármaco in vivo. Observou-se que os géis formulados com mucilagem natural apresentam melhores resultados do que os sintéticos em todos os aspectos, como dureza, adesão, coesão e força mucoadesiva. A biodisponibilidade absoluta do cloridrato de midazolam a partir do gel natural foi de 97,55 por cento, enquanto que nos géis sintéticos foi de 57,33 por cento e 76,81 por cento, respectivamente.
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Full text: Available Index: LILACS (Americas) Main subject: Nasal Decongestants / Plant Mucilage Language: English Journal: Braz. j. pharm. sci Year: 2011 Type: Article Affiliation country: India Institution/Affiliation country: Jadavpur University/IN / West Bengal University of Technology/IN

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Full text: Available Index: LILACS (Americas) Main subject: Nasal Decongestants / Plant Mucilage Language: English Journal: Braz. j. pharm. sci Year: 2011 Type: Article Affiliation country: India Institution/Affiliation country: Jadavpur University/IN / West Bengal University of Technology/IN