Kiran

The present work aims at evaluating the wound healing potential of a traditional plant Piper betle (PB) of both leaves and stem. The ethanolic extract of both Piper betle leaves and stem were investigated to evaluate the rate of wound healing enclosure and the histology of healed wounds in rats. Four groups of adult female albino wisttar rats were experimentally wounded at the dorsal region of the rats. Group 1 animals were left with untreated and set as negative control. Group 2 animals were treated with 10% Povidone Iodine, and set as positive control. Group 3 and 4 treated with ointment formulation containing 10% Piper betle leaves and 10% Piper betle stem leaves extract respectively. All the four groups are treated with for 21 days. Wound healing was assessed by rate of wound closure estimation and histology studies on the 21st day of post wounding. 10% Piper betle stem enhanced the wound healing process by increasing rate of wound closure compared to negative control group. Histological observation also showed better organized tissue and more collagen fibers in 10% Piper betle stem treated group. These results strongly document the significant effect of 10% Piper betle stem extract to accelerates the rate of wound healing and closure in the experimentally induced wound rats.

The main objective of this research work was to formulate and evaluate the bi layer tablets of chlorzoxazone by using different polymers. Chlorzoxazone is centrally acting skeletal muscle relaxant. The tablets containing immediate releasing layer and sustained release layer. The polymers used are microcrystalline cellulose pH 102, sodium starch glycol ate, croscarmellose, povidone for immediate releasing layer, HPMC K 100 cps, K4cps, E15cps, carbomer 971P, and natural gums like guar gum, Xanthan gum for sustained drug release layer. The matrix tablets were prepared by direct compression and wet granulation methods. All the excipients are tested for compatibility with drug, which revealed that there was no physical and chemical interaction occurred. The Pre formulation parameters such as bulk density, tapped density, compressibility index and Hausner’s ratio were analyzed. The In-Vitro drug release studied were Performed in the USP dissolution apparatus- (paddle) using pH 1.2 HCL buffer and pH 6.8 phosphate buffer as dissolution media at 100rpm speed and temperature of 37oC ± 5oC. The sampling was done at periodic time intervals of 1.5, 3, 4, 6, 8, 10 and 12 hours and was replaced by equal volume of dissolution media after each withdrawal. The cumulative amount of drug release at different intervals is estimated using UV method. Based on the evaluation result the formulations F6 was selected as best formulation among immediate release and is used to compress with sustained release layer. Among all formulation FB8 formulation (HPMC K100m 88%) shown maximum release of 98.84% drug in 12th hour.

Liver plays a major role in detoxification. Any injury to it or impairment of its function may lead to many implications on one’s health. Management of liver diseases is still a challenge to modern medicine. The allopathic medicine has little to offer for the alleviation of hepatic ailments whereas the most important representatives are of phytoconstituents. The work presented in this paper is on plant Limnanthemum indicum which is reported that the whole plant is traditionally used as hepatoprotective. The study was aimed at evaluation of the hepatoprotective activity of the whole plant of Limnanthemum indicum on the BRL3A (Rat, Liver cell line) cell line. The various solvent extracts were tested for its inhibitory effect on BRL3A (Rat, Liver cell line) cell line. The percentage viability of the cell line was carried out. The cytotoxicity of Limnanthemum indicum on rat liver cell was evaluated by the MTT assay [(3-(4,5 dimethylthiazole –2 yl)-2,5 diphenyl tetrazolium bromide) assay]. The principle involved is the cleavage of tetrazolium salt MTT into a blue coloured derivative by living cells which contains mitochondrial enzyme succinate dehydrogenase However, the information available on the pharmacological activity of the plant is very limited. Hence, it was proposed to carry out a preliminary in vitro analysis of the hepato protective activity of the plant. Out of the various extracts evaluated, ethanolic extract of Limnanthemum indicum gave promising results.

Over the past few decades, there has been an increased  interest for innovative drug delivery systems to improve safety, efficacy and patient compliance, thereby increasing the product patent life cycle. There are novel types of dosage forms that act very quickly after administration. The basic approach used in development tablets is the use of superdisintegrants like Cross linked carboxymelhyl cellulose (Croscarmeliose), Sodium starch glycolate (Primogel, Explotab), Polyvinylpyrrolidone (Polyplasdone) etc. which provide instantaneous disintegration of tablet after administration. Immediate release liquid dosage forms and parenteral dosage form have also been introduced for treating patients. Liquid dosage form can be suspensions with typical dispersion agents like hydroxypropyl methylcellulose, AOT (dioctylsulfosuccinate) etc. The development of immediate release therapy also provides an opportunity for a line extension in the marketplace, A wide range of drugs (e.g., neuroleptics, cardiovascular drugs, analgesics, antihistamines, and drugs can be considered candidates for this dosage form. In this regard, immediate release formulations are similar to many sustained release formulations that are now commonly available. oral film dosage form not only has certain advantages of other fast disintegrating systems but also satisfies the unmet needs of the market. The present review emphasizes on the potential benefits, design and development of robust, stable, and  innovative orally immediate and their future  scenarios on a global market as a pharmaceutical dosage form.

Bioavailability and Bioequivalence studies play a vital role in drug development process for new drug products and generic drugs. The main aim of abbreviated new drug application is to show that the generic drug is bioequivalent to innovator product in terms of quality, safety, and efficacy. There are several approaches to study bioequivalence and each country has its own regulations for conducting Bioavailability and Bioequivalence studies. The present review gives information about abbreviated new drug application submission and important aspects involved in bioequivalence and Regulatory requirement for various countries.

Liquid chromatography-mass spectrometry (LC-MS) is sensitive technique that is affected by matrix effect. It arises due to phospholipids, proteins or metabolites present in biological fluids. It either increases or decreases the ionization of sample and affects detection limits. By careful evaluation of matrix effect on the drugs and their ionization in LC-MS the sensitivity could be improved. Evaluation of matrix effect for bio estimation of prasugrel hydrochloride is done by sample preparation methods, chromatographic conditions, internal standard and mass spectrometric conditions. A LC-MS method was developed for prasugrel hydrochloride with mobile phase consisted of ammonium formate (5mM, pH 7.5): acetonitrile (30:70, %v/v) at 1 mL/min flow rate and PDA detection at 220 nm. The mass detection method was after ionization with ESI probe, CDL temperature 230°C, detector voltage-1.5 Kv, nebulisation gas flow-1.5 L/min and column temperature was 30.5°C. The molecular ion peak was identified at m/z of 410 and product ion peak at m/z 374. The plasma spiked with prasugrel was subjected to each evaluation process and matrix effect was studied.  In sample preparation technique, the extraction efficiency and process efficiency were also calculated. The study results have shown that the matrix effect could be reduced systematically by the procedures performed and the sensitivity of LC-MS in the detection and quantification was increased to detect 20 ng/mL of Prasugrel from plasma.

Hisar district is situated in the Haryana state of India and is endowed with various food plant species promi­nently employed in traditional medicine. The information on medicinal uses of plants is based on the exhaustive interviews with local physicians practicing indigenous system of medicine, village headmen, priests and denizens. The present research highlights useful ethnobotanical information about the uses of plants by the inhabitants of Hisar district of Haryana state. The study may open doors of unexplored medicinal plants to be used in treatments in future.

A simple, rapid, precise, and economical spectrophotometric method has been developed for quantitative analysis of Rilpivirine hydrochloride (RILH) in manufactured tablet formulations. The initial stock solution of RILH was prepared in dimethyl formamide: acetonitrile solvent and subsequent dilution were done in acetonitrile. The standard solution of RILH in acetonitrile showed absorption maxima at 281.6 nm. The drug obeyed Beer–Lambert’s law in the concentration range of 1–16 μg/mL with coefficient of correlation (R2) was 0.9999. It showed coefficient of variation below 2 % in intra-run and inter-run precision.  The results of analysis have been validated as per ICH guidelines. The method can be adopted in routine analysis of RILH in bulk and tablet dosage form and it involves relatively low cost solvents and no complex extraction techniques.

The purpose of this research was to develop a desired topical formulation containing clotrimazole for treatment of fungal infections like eczema, itching, pruritis etc. Topical formulation enriched with SLN of clotrimazole were prepared. The solid lipid nanoparticulate dispersion of clotrimazole was prepared by hot homogenization technique using polymers like Carbopol 934, mannitol and PEG 6000. The nanoparticulate dispersion was evaluated for various parameters such as physical evaluations, particle size, diffusion studies, DSC, SEM, stability studies. The solid lipid nanoparticulate dispersion showed mean particle size less than 1000 nm. Differential scanning Calorimetry studies revealed no drug excipient incompatibility. Diffusion studies release profile of clotrimazole from nanoparticulate dispersion showed prolonged drug release. And all other evaluations were found to be complied the limits. Thus it can be concluded that formulation of SLN containing clotrimazole can be successfully formulated to localize the drug in the skin for to treat topical fungal infections.

At current 40% of the drugs were poorly soluble and were also called as “brick dust”. And the drugs which were belonging to the BCS CLASS II & IV were most eligible for this Nanosuspension technology. Here by using different methods we are reducing the particle size so the surface area will be increases ultimately it leads to increase in the bio availability. This instance was observed mostly in the case of anti-cancer drugs. Paclitaxel with 25% of Human Serum Albumin (HSA) showed very good results in terms of drug content, particle size, zeta potential and %CDR. Key words: Nanosuspension, Paclitaxel, Human Serum Albumin (HSA), High pressure homogenization.