Volume 1 (2010) - Issue 8, August (Suppl.)
The solubility behavior of drugs remains one of the most challenging aspects in the formulation development. Although there was a great interest in solid dispersion systems during the past four decades to increase solubility by improving dissolution rate and bioavailability of poorly soluble drugs; there commercial use has been very limited, primarily because of manufacturing difficulties and vari...
Oral Disintegrating Drug Delivery Systems (ODDDS) have the unique property of rapidly disintegrating and/or dissolving and releasing the drug as soon as they come in contact with saliva, thus obviating the requirement of water during administration. Methods to improve patient’s compliance have always attracted scientists towards the development of fancy oral drug delivery systems. Among them, or...
Direct genetic alterations leading to deregulated PI3K/Akt signaling are common in a significant fraction of human malignancies. Both Akt and Aurora A kinase have been shown to be important targets for intervention for cancer therapy. Nuclear Akt1 expression and Akt activation are common in cancer invasion. However, the mechanisms for this association and its causal role in invasion are uncertain....
Pharmacogenomics is the branch of pharmacology and genomics that deals with the influence of genetic variation on drug response in patients by correlating molecular expressions and single-nucleotide polymorphisms with a drug's efficacy or toxicity. Pharmacogenomics aims to develop rational means to optimize drug therapy, with respect to the patients' genotype, to ensure maximum efficacy with mi...
Rimonabant is an anti-obesity drug which acts as Cannabinoid-1 receptor antagonist. Its main avenue of effect is reduction in appetite. The drug was formulated in the form of Sodium Alginate – Guar gum microspheres following ionotropic gelation method to reduce its dose related side effects. A detailed study of physical and chemical parameters including percentage drug loading and cumulative dru...
SYNTHESIS OF WATER SOLUBLE CROSSLINKED N- ACYL DERIVATIVE OF CHITOSAN AND ITS ASSESSMENT FOR ANTIMICROBIAL ACTIVITIES IN VITRO
Currently, natural polysaccharides are being utilized increasingly in the markets because they exhibit biodegradability, biocompatibility, versatility, and are found abundant in nature. Chitosan is a natural polysaccharide that possesses excellent biological properties. It has been recognized for its antibacterial activity, in that it is destructive towards the bacterium Escherichia coli (E. coli)...
Natural products are an important source of new structures leading to drugs in all major disease areas. They represent a pool of privileged structures that are optimized by evolution to interact with proteins and other molecules. Bombax ceiba is an important medicinal plant of tropical and subtropical India. Its medicinal usage has been reported in the traditional systems of medicine such as Ayurv...
HYPOGLYCEMIC AND ANTIHYPERGLYCEMIC EFFECT OF ETHANOLIC EXTRACT OF WHOLE PLANT OF LAWSONIA INERMIS (HENNA) IN STREPTOZOTOCIN INDUCED DIABETIC RATS
Diabetes, a global burden, is characterized by fast elevation of blood sugar level. The incidence of diabetes mellitus is rising all over the world, especially in Asia. Many oral hypoglycemic agents, such as biguanides and sulphonylurea are available along with insulin for the treatment of diabetes mellitus but they have significant side effects and sometimes they are found to be ineffective in ch...
COMPARATIVE STUDY ON EFFECT OF DIFFERENT SUBLIMING AGENTS ON FAST DISSOLVING TABLETS OF CHLORTHALIDONE BY VACUUM DRYING TECHNIQUE
Chlorthalidone is a phthalamide derivative of benzene sulphonamide and is designated as 2- chloro- 5- (1- hydroxy- 3- oxo- 1- isoindolinyl) benzene sulphanilamide. It is white to yellowish crystalline powder. It is practically insoluble in water, slightly soluble in alcohol. In the present study fast disintegrating tablets of chlorthalidone were prepared by adopting vacuum drying technique to stud...
The objective of the study was to develop HPMC matrix tablets for oral controlled/ sustained release of water soluble Diclofenac Potassium. Sustained release matrix tablets containing 100 mg of Diclofenac Potassium were developed using different drug polymer ratio of HPMC. Tablets were prepared by direct compression. Compressed tablets were evaluated for uniformity of weight, content of active ing...
FORMULATION AND DEVELOPMENT OF FAST DISINTEGRATING FELODIPINE TABLETS: FUNCTIONALITY OF SUPERDISINTEGRANTS
Felodipine, a calcium channel blocker, is used for hypertension and angina pectoris. Felodipine fast- disintegrating tablets (FDT) have been prepared by direct compression method. Effect of superdisintegrants (like crosspovidone, croscarmellose sodium and sodium starch glycolate) on wetting time, disintegrating time, drug content, in vitro release and stability parameter has been studied. Disinteg...
There is increasing evidence to support the involvement of free radical reactions in several human diseases. n recent years, it has become increasingly apparent that in man, free radicals play a role in a variety of normal regulatory systems, the de-regulation of which may play an important role in inflammation. Active oxygen species and other free radicals have long been known to be mutagenic. Fu...
Purpose of Study: In the present study, an attempt was made to design and evaluate buccoadhesive bilayer tablets of granisetron hydrochloride (an anti-emetic drug), in order to overcome bioavailability problems, to reduce dose dependent side effects and frequency of administration. Method: Bilayer buccal tablets containing the drug were prepared by direct compression method using combination of...
RELEASE PROFILE OF EXTRACTS OF BRIDELIA FERRUGINEA LEAF AND CANTHIUM GLABRIFLORUM STEM BARK FROM DIFFERENT ABSORBENTS
The aqueous decoctions of Bridelia ferruginea leaf and Canthium glabriflorum stem bark were converted into granules by absorbing into different types of absorbents in different quantities. In vitro dissolution studies were then used to assess the release of the extracts from the granules. Comparative and ranking studies of the effects of different weights of the different absorbents on the release...
Cassia aungostifolia is a common herbaceous belongs to the family of Caesalpiniaceae. Seeds of plant contain gluco-mannose hence attempt to evaluate the seeds for suitability as tablet binder is considered and the present exploration repots the isolation of mucilage of Cassia aungostifolia seed. The DSC and FTIR thermograms of drug and mucilage indicated no chemical interaction. Phytochemical and ...
PHYTOCHEMICAL SCREENING AND GUT MOTILITY ACTIVITY OF ETHANOLIC EXTRACT OF WHOLE PLANT OF SCUTIA MYRTINA KURZ.
Phytochemical and Gut motility activity of Ethanolic Extract of whole plant of Scutia Myrtina Kurz collected from Kolli Hills, Tamil Nadu was studied. Phytochemical studies revealed the presence of Alkaloids, Glycosides (Anthraquinone), Flavonoids and Tannins. For Gut Motility activity Extracts in concentration of 200mg/Kg and 400mg/Kg were studied in three animal models in comparison to Caster Oi...
Despite recent success, many fast-dissolving tablets (FDTs) still face problems of low mechanical strength, poor mouth-feel, higher wetting and disintegration times. This research work aimed to overcome from these drawbacks. Attempts were made to prepare fast dissolving tablets by employing vacuum drying technique utilizing single and multi-volatile components. Analysis revealed that, formulation ...
In this study, the anti-inflammatory effect of methanolic extract obtained from root tubers of plant Curculigo orchioides Gaertn. (Amaryllidaceae) was investigated. The effect of extract was studied in Carrageenan induced rat paw oedema. The extract at a dose of 200mg/kg and 400mg/kg was carried out for the investigation. The results indicate that methanolic extract, at the dose of 200mg/kg & ...
DEVELOPMENT AND VALIDATION OF UV SPECTROPHOTOMETRIC METHOD FOR ESTIMATION OF DIPHENHYDRAMINE HYDROCHLORIDE IN SOFT GELATIN CAPSULE
A simple, accurate, cost effective and reproducible spectrophotometric method has been developed for the estimation of Diphenhydramine Hydrochloride in soft gelatin capsule dosage form. For UV spectrophotometric method, maximum absorption was found at λmax 258nm.The percentage recovery of Diphenhydramine Hydrochloride ranged from (98.97 ± 0.2989) in capsule dosage form. The developed method was ...
Carvedilol is used for hypertension, angina pectoris and in symptomatic heart failure. It has a short half life of 2h and bioavailability of 25%. Therefore the present investigation is concerned with the development of the buco-mucoadhesive films, which were designed to prolong the buccal residence time, to increase penetration through buccal mucosa and thus increase the bioavailability and its ha...