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IN VITRO STUDY ON TAMSULOSIN RELEASE KINETICS FROM BIODEGRADABLE PLGA IN SITU IMPLANTS

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dc.contributor.author MD. ELIAS-AL-MAMUN
dc.contributor.author HUMAIRA AFREEN KHAN
dc.contributor.author IRIN DEWAN
dc.contributor.author REZA-UL JALIL
dc.date.accessioned 2022-11-29T05:01:16Z
dc.date.available 2022-11-29T05:01:16Z
dc.date.issued 2009-11-02
dc.identifier.citation Elias-Al-Mamun, M., Khan, H. A., Dewan, I., & Jalil, R. U. (2009). In vitro study on tamsulosin release kinetics from biodegradable PLGA in situ implants. Pakistan Journal of Pharmaceutical Sciences, 22(4). en_US
dc.identifier.issn 1011-601X
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/14159
dc.description.abstract The objective of this study was to evaluate the effect of drug loading and the effect of excipients on the release pattern of tamsulosin tydrochloride from in situ PLGA implants formed in vitro in gelatin gel. This system is prepared by dissolving a biodegradable polymer (DL-PLGA 70K) in biocompatible solvent, dimethyl sulfoxide (DMSO). Then ither the drug or drug with excipients was added to it. The drug solution was poured into he hollow of gelatin gel, the solvent dissipated into the surrounding gelatin base through iffusion leading phase separation and subsequent coagulation of the polymer. The drug ormed a rod like implant in situ. Two types of implants were prepared such as implants containing tamsulosin hydrochloride and implants containing tamsulosin hydrochloride with biocompatible excipients such as Tween 20, Tween 60, Span 20, Span 80, Chremophore EL, or Chremophore RH 40. In vitro dissolution studies were performed in static condition using phosphate buffer (pH 7.4) to observe the release of drugs from these implants for 10 days. Formulation containing only tamsulosin hydrochloride showed that drug loading was 83.54%, 90.23%, 86.72%, 89.17% and 94.08% against the actual drug content of 9.09%, 13.04%, 16.67%, 20% and 23.08% respectively. The release rate of drug was 64.51%, 70.64%, 74.08%, 76.12% and 80.05% accordingly. It can be concluded that the release rate of drug increases with increasing drug concentrations. The other formulation containing tamsulosin with excipients showed that the release rate was 74.70%, 75.14%, 60.03%, 63.83%, 70.82% and 76.43% against same conc. of drug (8.7% of drug) but different excipients such as tween 20, tween 60, span 20, span 80, chremophore EL and cremophore RH 40 respectively. The loading efficiency was 79.33%, 87.34%, 91.91%, 94.19%, 88.48% and 95.34% respectively. It can be concluded that excipient lowers the release rate of the drug and may prolong the activity and overall release kinetics. en_US
dc.language.iso en en_US
dc.subject In situ implant en_US
dc.subject drug delivery en_US
dc.subject aprotic solvent en_US
dc.subject biodegradable en_US
dc.subject tamsulosin en_US
dc.title IN VITRO STUDY ON TAMSULOSIN RELEASE KINETICS FROM BIODEGRADABLE PLGA IN SITU IMPLANTS en_US
dc.type Article en_US


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