نتایج جستجو برای: drug polymer ratio

تعداد نتایج: 1142126  

2013
VANITA J. SHARMA PURNIMA D. AMIN

Metoprolol succinate (M.succinate), a BCS Class I drug is the most widely prescribed anti-hypertensive drug and is considered to be safe. Owing to its high solubility, fabrication of an extended release matrix formulation becomes extremely challenging. Hydrophilic matrix polymers are the preferred systems for developing an extended release formulation. However, for highly soluble drugs, it fail...

2016
Gamal A Shazly

The bioavailability of sulindac (SDC), a nonsteroidal anti-inflammatory drug, is low due to poor aqueous solubility and poor dissolution rate. For this reason it is necessary to enhance the solubility and enhance dissolution of the drug by dispersing SDC in polyethylene glycols 6000 (PEG 6000) and polyvinyl pyrrolidone 40000 (PVP 40000) matrices using the coevaporation technique. Studying the i...

A common approach for building a drug delivery system is to incorporate the drug within the nanocarrier that results in increased solubility, metabolic stability, and improved circulation time. However, recent developments indicate that selection of polymer nanomaterials can implement more than only inert carrier functions by being biological response modifiers. One representative of such mater...

2012
Badir Delf Loveymi Mitra Jelvehgari Parvin Zakeri-Milani Hadi Valizadeh

A Box-Behnken design with three replicates was used for preparation and evaluation of Eudragit vancomycin (VCM) nanoparticles prepared by double emulsion. The purpose of this work was to optimize VCM nanoparticles to improve the physicochemical properties. Nanoparticles were formed by using W1/O/W2 double-emulsion solvent evaporation method using Eudragit RS as a retardant material. Full factor...

Journal: :Iraqi Journal of Pharmaceutical Sciences 2021

Isradipine belong to dihydropyridine (DHP) class of calcium channel blockers (CCBs). It is used in the treatment hypertension, angina pectoris, addition Parkinson disease. goes under BCS II drug (low solubility-high permeability). The will experience extensive first-pass metabolism liver, therefore, oral bio-availability be approximately15 24 %.
 
 aim this study was formulate and opt...

Amanzadeh, Amir, Farokhi, Mehdi, Motasadizadeh, Hamidreza, , , Fatahi, Yousef , Molla-Kazemiha, Vahid ,

Nowadays, design and synthesis of efficient drug delivery systems are of vital importance in order to optimize the efficacy of therapeutics and reducing side effects. So far, many drug delivery systems have been designed, among them, natural polymer-based systems have attracted the most attention. Silk fibroin (SF) as a natural polymer have several unique properties including excellent biocompa...

Journal: :jundishapur journal of natural pharmaceutical products 0
mitra jelvehgari department of pharmaceutics, faculty of pharmacy, tabriz university of medical sciences, tabriz, ir iran; drug applied research center, tabriz university of medical sciences, tabriz, ir iran; department pharmaceutics, school of pharmacy, tabriz university of medical sciences, tabriz, ir iran. tel: +98-4113392585, fax: +98-4113344798 vajihe mobaraki student research committee, tabriz university of medical sciences, tabriz, ir iran seyed hassan montazam department of microbiology, islamic azad university of bonab unit, bonab, ir iran

conclusions algino-pectinate mucoadhesive formulations exhibited promising properties of a sustained release form for piroxicam and provided distinct tissue protection in stomach. objective the purpose of this research was to decrease gastric side effects of piroxicam by formulating microspheres of alginate and algino-pectinate beads of the drug. materials and methods ionotropic gelation was us...

Journal: :nanomedicine journal 0
mitra amoli-diva department of chemistry, payam noor university (pnu), tehran, iran kamyar pourghazi department of novel medical technologies, darupakhsh pharmaceutical co., tehran, iran

objective(s): pharmaceutical industries are leading to improved medications that can target diseases more effectively and precisely. researchers have intended to reformulate drugs so that they may be more safely used in human body. the more targeted a drug is, the lower its chance of triggering drug resistance, a cautionary concern surrounding the use of broad-spectrum antibiotics. the aim of t...

2012
Luis Solorio Alexander M. Olear Jesse I. Hamilton Ravi B. Patel Ashlei C. Beiswenger Jon E. Wallace Haoyan Zhou Agata A. Exner

In situ forming implants (ISFIs) have shown promise in drug delivery applications due to their simple manufacturing and minimally invasive administration. Precise, reproducible control of drug release from ISFIs is essential to their successful clinical application. This study investigated the effect of varying the molar ratio of different molecular weight (Mw) poly(D,L-lactic-co-glycolic acid)...

Journal: :iranian journal of pharmaceutical research 0
zahra zamani department of animal science, bu-ali sina university daryoush alipour department of animal science, faculty of agriculture, bu-ali sina university hamid reza moghimi school of pharmacy seyed ali reza mortazavi school of pharmacy mostafa saffary school of pharmacy

thymol, an important and advantageous component of many essential oils, has been applied as an antimicrobial agent in animals. to increase the duration of action of this compound in ruminants, it was decided here to prepare a controlled release carrier for thymol. hydroxy propyl methyl cellulose (hpmc) and ethyl cellulose (ec) were used as the matrix polymer here. mixtures of thymol with eight ...

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