نتایج جستجو برای: in vitro dissolution

تعداد نتایج: 16982055  

Amal Elkordy, Ebtessam Essa

       The formulation of hydrophobic drugs for oral drug delivery is challenging due to poor solubility, poor dissolution and poor wetting of these drugs. Consequently, the aim of this study was to improve the dissolution of a model poorly water soluble drug, ibuprofen. Microparticles containing ibuprofen were produced by spray drying and spray chilling technology in the absence/presence of a ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زابل - دانشکده کشاورزی 1392

این پژوهش به منظور بررسی تغییرات ترکیبات شیمیایی و ارزش غذایی سیلوی علوفه نی با افزودن برگ توت، آردجو و آنزیم به روش in vitro و in situ انجام شد. بدین منظور علوفه نی جمع آوری و جهت سیلو نمودن به قطعات 4-2 سانتی متری خرد گردید. سپس با استفاده از برگ توت ( 40 درصد)، آرد جو (10 درصد) و آنزیم به مقدار توصیه شده ( 3 گرم به ازای هر کیلوگرم ماده خشک) قبل از سیلو مخلوط و درون سطل های 5 کیلویی پلاستیکی ...

2010
Amit Kumar Nayak

Various commercially available paracetamol tablets (500 mg) were evaluated comparatively for in vitro dissolution qualities along with drug content (assay). The assay results ascertain the presence and compendial quality of paracetamol in all these products. The in vitro dissolution profiles were found to be varying for each tablet, but within the prescribed limit. The dissolution at 15 minutes...

2015

With the increased reliance on in vitro dissolution testing as an indicator of in vivo drug behavior and the trend towards the in silico modeling of dosage form performance, the need for bioperformance dissolution methodology development has been enhanced. Determination of the in vivo drug delivery profile is essential for the bioperformance dissolution test development and in vitro/in vivo cor...

Journal: :iranian journal of pharmaceutical sciences 0
zahra mohammadi materials science and engineering department, sharif university of technology, tehran, iran aliakbar ziaei-moayyed materials science and engineering department, sharif university of technology, tehran, iran abdorreza sheikh mehdi mesgar materials science and engineering department, sharif university of technology, tehran, iran mohammad hossain afdjei education group, ministry of health and medical education, tehran, iran

the in vitro dissolution of plasma-sprayed hydroxyapatite (pha) coatings with different characteristics, produced by various spraying conditions, in a tris-buffered solution at ph 7.4 was experimentally studied through the measurement of calcium ions release with inductively coupled plasma atomic emission spectroscopy (icp-aes), and then modeled. three coating characteristics, the crystallinity...

Journal: :Journal of pharmaceutical sciences 2014
Susumu Takeuchi Yasuhiro Tsume Gregory E Amidon Gordon L Amidon

In vitro dissolution tests are performed for new formulations to evaluate in vivo performance, which is affected by the change of gastrointestinal (GI) physiology, in the GI tract. Thus, those environmental changes should be introduced to an in vitro dissolution test. Many studies have successfully shown the improvement of in vitro-in vivo correlations (IVIVC) by introducing those physiological...

Journal: :Acta pharmaceutica 2015
Marija Ilić Ivan Kovačević Jelena Parojčić

With the increased reliance on in vitro dissolution testing as an indicator of in vivo drug behavior and the trend towards the in silico modeling of dosage form performance, the need for bioperformance dissolution methodology development has been enhanced. Determination of the in vivo drug delivery profile is essential for the bioperformance dissolution test development and in vitro/in vivo cor...

The present study investigates the possibility of using poloxamers as solubility and dissolution rate enhancing agents of poorly water soluble bioactive constituent patchouli alcohol (PA) that can be used for the preparation of immediate release pellets formulation. Two commercially available grades poloxamer 188 (P 188) and poloxamer 407 (P 407) were selected, and solid dispersions (SDs) conta...

The present study investigates the possibility of using poloxamers as solubility and dissolution rate enhancing agents of poorly water soluble bioactive constituent patchouli alcohol (PA) that can be used for the preparation of immediate release pellets formulation. Two commercially available grades poloxamer 188 (P 188) and poloxamer 407 (P 407) were selected, and solid dispersions (SDs) conta...

Journal: :the iranian journal of pharmaceutical research 0
harjeet singh department of pharmaceutics, rajiv academy for pharmacy, mathura, uttar pradesh, india. betty philip department of pharmaceutics, school of pharmacy, college of pharmacy and nursing, university of nizwa, birkat al mouz, nizwa 616, sultanate of oman. kamla pathak department of pharmaceutics, rajiv academy for pharmacy, mathura, uttar pradesh, india.

the solubility enhancement of poorly soluble compounds is an important task in pharmaceutical technology as it leads to better bioavailability and a more efficient application. fused dispersions (fds) of simvastatin (sim) using peo-ppo block copolymer were prepared which paved the way for the formation of an amorphous product with enhanced dissolution and bioavailability. the accumulative solub...

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