PharmaTutor

Thursday, October 3, 2013

NEED FOR EFFICACY, SAFETY, QUALITY CONTROL AND REGULATORY GUIDELINES FOR PHYTOPHARMACEUTICALS

This review paper highlights the current advances in knowledge about the safety, efficacy, quality control and regulatory aspects of Phytopharmaceuticals. The growing use of Phytopharmaceuticals (drug and other products derived from plants) by the public is forcing moves to evaluate the health claims of these agents and to develop standards of quality and manufacture. At present there is almost no policy worth its name to regulate the procurement and sale of medicinal plants in developing countries. Finally, the trend in the domestication, production and biotechnological studies and genetic improvement of medicinal plants, instead of the use of plants harvested in the wild, will offer great advantages, since it will be possible to obtain uniform and high quality raw materials which are fundamental to the efficacy and safety of herbal drugs.It is clear that the herbal industry needs to follow strict guidelines and that regulations are needed. This paper presents the element of methods of different aspects on efficacy, safety, quality control and standardization of herbal drugs and formulation. It is followed by international guidelines of WHO for manufacture quality control and evaluation of botanicals. Herbal drugs regulations in India is discussed in detail, followed by an overview of regulatory status of herbal medicine in USA, China, Australia, Brazil, Canada and Germany.


PRENATAL NUTRITION; NUTRIENT RECOMMENDATIONS BEFORE, DURING & AFTER PREGNANCY

Nutrition  before and during pregnancy has a profound effect on the development of infants. This is a rather critical time for healthy fetal development as infants rely heavily on maternal stores and nutrient for optimal growth and health outcome later in life. Prenatal nutrition addresses nutrient recommendations before and during pregnancy. Birth weight of the newborn at delivery reflects the sufficiency and the quality of maternal nutrient for the fetus during pregnancy. Prenatal nutrition has a strong influence on birth weight and further development of the infant.The present paper reviews the role of  prenatal nutrition in pregnancy.

READ MORE: http://www.pharmatutor.org/articles/prenatal-nutrition-nutrient-recommendations-before-during-after-pregnancy

READ MORE: PHARMATUTOR.ORG

ANDROPAUSE-MALE MENOPAUSE

Andropause is an age-related decline of testosterone in men that is gaining recognition as the world population becomes more aged. The diagnosis is based on clinical signs and symptoms supported with laboratory confirmation of low serum testosterone levels. The benefit of testosterone replacement therapy (TRT) for andropause has been well documented, but it requires careful monitoring...\\

SOURCE: PHARMATUTOR.ORG

READ MORE: http://www.pharmatutor.org/articles/andropause-male-menopause

FORMULATION AND DEVELOPMENT OF VENLAFAXINE HYDROCHLORIDE EXTENDED RELEASE TABLET USING COMPRESSION COATING TECHNIQUE

Venlafaxine HCl is an anti depressent drug which is used in depreesion. It is available both as immediate release tablet as well as modified release product. The innovator modified release product available in international market is Effexor ER tablets. Effexor ER is based on erosion matrix system. The core tablet is coated with Ethyl Cellulose using PVP as a core former. This coating is solvent based coating. The aim of  present investigation was to prepare a ER tablet of Venlafaxine HCl  with similar dissolution profile matching to  Effexor ER  using  swelling  matrix system. The platform developed for this product was compression coating.  An immediate release  core tablet of 100mg  was prepared and it was compression coated using HPMC  matrix system. HPMC of three viscosity grades was selected and the concentration and the   viscosity grade were optimised. Similarity factor ( F2 values) with innovator product were calculated for in vitro dissolution profile.  The  rank order correlation for similarity factor was as under HPMC K15M 15% > HPMC K100M 15% > HPMC k15M 35% > HPMC k100M 35% > HPMCK 4M 15% > HPMC k45 45%. In this review, current and recent developments of venlafaxine hydrochloride extended release products are discussed....

SOURCE: PHARMATUTOR

READ MORE: http://www.pharmatutor.org/articles/formulation-development-venlafaxine-hydrochloride-extended-release-tablet-using-compression-coating-technique

OVERVIEW: LYME DISEASE

Lyme disease (Lyme borreliosis) is an infectious disease caused by at least three species of bacteria belonging to the genus Borrelia. Borrelia burgdorferi sensu strictois the main cause of Lyme disease in North America, whereas Borrelia afzelii and Borrelia garinii cause most European cases. The disease is named after the towns of Lyme and Old Lyme, Connecticut, US, where a number of cases were identified in 1975. Although it was known that Lyme disease was a tick-borne disease as far back as 1978, the cause of the disease remained a mystery until 1981, when B. burgdorferi was identified by Willy Burgdorfer....

SOURCE: PHARMATUTOR

READ MORE: http://www.pharmatutor.org/articles/overview-lyme-disease

SOLUBILITY ENHANCEMENT OF POORLY WATER SOLUBLE DRUG ZALTOPROFEN BY MIXING SOLVENCY TECHNIQUE

In present work mixed solvency concept was used for solubility enhancement of poorly water soluble drug. Aqueous blends of hydrotropes, cosolvents and water soluble solids were used as solvent for poorly water soluble model drug zaltoprofen. In mixing solvency above additives are mixed in different ratio and their aqueous solution served as solvent for water insoluble drug. These solvent systems have extreme potential of increasing solubility of poorly water soluble drugs. In this research work standard curve of drug in different individual aqueous solution of above mentioned type of substances as well as in their blend were plotted and from the curve, solubility of drug in that solvent system is estimated using excess solute addition method. The results obtained shows that solubility of drug in mixed blend is more as compared to their individual solvent systems.

SOURCE: PHARMATUTOR

READ MORE: http://www.pharmatutor.org/articles/solubility-enhancement-poorly-water-soluble-drug-zaltoprofen-mixing-solvency-technique

BRAIN DRUG DELIVERY OF NANOPARTICLES BY NASAL ROUTE FOR THE TREATMENT OF DEPRESSION

Major depression is a mood disorder characterized by a sense of inadequacy, despondency, decreased activity, pessimism and sadness where these symptoms severely disrupt and adversely affect the person’s life, sometimes to such an extent that suicide is attempted or results. Various Strategies are used for the treatment of depression by giving drug by various routes. Nasal drug delivery is the best route for treatment of CNS disorder as it is the direct route for the delivery of drug.

SOURCE: PHARMATUTOR

READ MORE: http://www.pharmatutor.org/articles/brain-drug-delivery-nanoparticles-nasal-route-treatment-depression