6.1 Literature review matrix Taha E. et al (2015) evaluated Diclofenac Sodium (DS) matrix tablets prepared by direct compression method under different compression forces using ethyl cellulose as matrix forming material. The produced tablets were characterized for hardness, friability, drug content, weight variations and in vitro drug release. Incompatibility study carried out using DSC FT-IR s...

The aim of the present research was to develop a bilayer tablet of venlafaxine hydrochloride for bimodal drug release. In the present investigation authors have tried to explore fenugreek mucilage (FNM) for bioadhesive sustained release layer. The attempt has been made to combine FNM with well studied bioadhesive polymers like hydroxy propyl methyl cellulose (HPMC), Carbopol, and Xanthan Gum. T...

Lowering elevated blood pressure (BP) with drug therapy reduces the risk for catastrophic fatal and nonfatal cardiovascular events. Due to the marked variability in an individual patient’s BP response and low response rates with monotherapy, expert groups such as Joint National Committee (JNC) emphasize the value of combination antihypertensive regimen, usually of different classes, having addi...

Tablet is most popular among all dosage forms today because of its convenience, ease administration, greater flexibility in form design, production, and low cost non-invasive therapy. Formulation tablets requires API along with excipients. Excipients include lubricants, diluents, binders, glidants, disintegrants, sweetening agents, flavoring etc. Recent trends indicate that multi-particulate dr...

In present study mucoadhesive buccal tablet of simvastatin was prepared. Solubility of Simvastatin was enhanced by complexing Simvastatin with β-CD in 1:2 molar concentrations. Six different formulations of tablets of Simvastatin containing the polymers in various combinations were prepared by direct compression method and characterized for swelling studies, % matrix erosion, surface pH, mucoad...

The goal in designing sustained or controlled delivery systems is to reduce the frequency of dosing increase effectiveness drug by localization at action, reducing dose required providing uniform delivery. primary objective release ensure safety and improve efficacy drugs as well patient compliance. Bi-layer tablet suitable for sequential two combination, separate incompatible substances also w...

the purpose of this study was to design and optimize an oral controlled release acyclovir mucoadhesive tablet, in term of its drug release and mucoadhesive strength. a 32 full factorial design was employed to study the effect of independent variables like carbopol-934p and hydroxypropyl methylcellulose k100m, which significantly influence characteristics like swelling index, ex-vivo mucoadhesiv...

The investigation is to study the effect of polymers on compressibility and release of Metoprolol Tartarate from tablet through direct compression. Tablets were prepared by direct compression by mixing with commonly used polymers, Eudragit RL-100, Chitosan, Ethyl cellulose, Hydroxyethyl cellulose and hydroxypropylmethyl cellulose K-100 in 1:1 ratio. The compressibility parameters were estimated...