Biodegradable microspheres are one of the most useful devices to deliver materials in an effective, prolonged and safe manner. Mucoadhesion is a novel area of interest in the design of drug delivery systems to maintain the dosage form at the site of action or absorption and to facilitate intimate contact of the dosage form with underlying absorption surface to improve and enhance bioavailability. Repaglinide is a meglitinide analogue used as oral hypoglycaemic drug and having very low t1/2 (~ 1hr.), 56% bioavailability. It is totally absorbed from GIT, so it is the need to increase its...

The present study was to maintain the levels of diltiazem hydrochloride within a desired range, reduction in its dosing frequency and increase bioavailability. The tablets were formulated by using of 32 factorial design, the effect of independent variables X1 (concentration of hydroxy propyl methylcellulose K100) and X2 (concentration of sodium carboxymethylcellulose) on swelling index and drug release was studied. Tablets were prepared by direct compression method using 13 mm punch on rotary tablet machine. Physical properties of compressed tablets such as hardness, friability, content...

The objective of present study was to formulate an oral mcoadhesive tablet of diltiazem hydrochloride.Investigate the effect of amount of HPMC K4M and sodium alginate on the sustained release and gastric residence time of dosage form. The mucoadhesive tablet prepared by direct compression method was used varying concentrations of HPMC K4M and Sodium alginate and (1:1, 1:1.5, 1:2) Drug and Polymer ratio.The formulations were evaluated and results revealed that FTIR studies showed no evidence of interactions between drug and excipients used. The mucoadhesive strength, residence time and drug...

Ziel der vorliegenden Studie war es, eine orale mukoadhäsive Tablette von Diltiazemhydrochlorid zu formulieren und die Wirkung der Menge an HPMC K4M und Natriumalginat auf die verzögerte Freisetzung und die Magenverweildauer der Darreichungsform zu untersuchen. Die mukoadhäsive Tablette, die durch direkte Kompression hergestellt wurde, wurde mit unterschiedlichen Konzentrationen von HPMC K4M und Natriumalginat und einem Verhältnis von (1:1, 1:1,5, 1:2) zwischen Medikament und Polymer hergestellt. Die mukoadhäsive Stärke, die Verweilzeit und der Wirkstoffgehalt der Formulierung F3...

Les microsphères biodégradables sont l'un des dispositifs les plus utiles pour délivrer des matériaux de manière efficace, prolongée et sûre. La mucoadhésion est un nouveau domaine d'intérêt dans la conception des systèmes d'administration de médicaments afin de maintenir la forme pharmaceutique au site d'action ou d'absorption et de faciliter le contact intime de la forme pharmaceutique avec la surface d'absorption sous-jacente pour améliorer et renforcer la biodisponibilité. Le répaglinide est un analogue de la méglitinide utilisé comme médicament hypoglycémique oral. Il...