Results: 82

Optimization and validation of an RP-HPLC method for the estimation of 6-mercaptopurine in bulk and pharmaceutical formulations

Braz. j. pharm. sci; 50 (4), 2014
A reverse phase HPLC method is described for the determination of 6-mercaptopurine in bulk and tablets. Chromatography was carried on a C18 column using a mixture of acetonitrile and 0.05 mol/L sodium acetate buffer (10:90 v/v) as the mobile phase at a flow rate of 1 mL/min-1 with detection at 324 nm. Th...

Formulation design and evaluation of Cefuroxime axetil 125 mg immediate release tablets using different concentration of sodium lauryl sulphate as solubility enhancer

Braz. j. pharm. sci; 50 (4), 2014
Cefuroxime axetil immediate release tablets were formulated by direct compression method with different percentages of sodium lauryl sulphate (SLS) such as 0.5, 1.0, 1.5 and also without SLS. Resulting batches of tablets were evaluated by both pharmacopeial and non-pharmacopeial methods to ascertain the ...

Screening of mucoadhesive vaginal gel formulations

Braz. j. pharm. sci; 50 (4), 2014
Rational design of vaginal drug delivery formulations requires special attention to vehicle properties that optimize vaginal coating and retention. The aim of the present work was to perform a screening of mucoadhesive vaginal gels formulated with carbomer or carrageenan in binary combination with a seco...

Use of Curcuma longa in cosmetics: extraction of curcuminoid pigments, development of formulations, and in vitro skin permeation studies

Braz. j. pharm. sci; 50 (4), 2014
Curcuma longa is a ginger family aromatic herb (Zingiberaceae) whose rhizomes contain curcuminoid pigments, including curcumin, a compound known for its anti-inflammatory effects. The objective of this study was to obtain curcuminoid-rich extracts, develop topical formulations thereof, and assess the sta...

Influencia del marco regulatorio de los productos farmacéuticos en la salud pública² Análisis a partir de la ratificación por Colombia del Convenio ADPIC y de los Tratados de Libre Comercio con los Estados Unidos y la Unión Europea

Aquichan; 13 (1), 2013
Este artículo tiene por objetivo estudiar la relación entre la disponibilidad, los precios de los medicamentos y los intereses de salud pública. Para ello hemos utilizado una metodología de análisis de los intereses económicos implicados y también un método sistemático de tratamiento de la legis...

Carboidratos como matéria-prima para a preparação de substratos quirais: aplicações em catálise enantiosseletiva e processos diastereosseletivos

O presente trabalho descreve o uso de carboidratos como materiais de partida para a preparação de catalisadores quirais e também de substratos quirais. Primeiramente estudos envolvendo a aplicação de amino álcoois derivados de carboidratos na arilação assimétrica de aldeídos, usando ácidos ari...

Evaluation of Cedrela gum as a binder and bioadhesive component in ibuprofen tablet formulations

Braz. j. pharm. sci; 49 (1), 2013
The compressional, mechanical and bioadhesive properties of tablet formulations incorporating a new gum obtained from the incised trunk of the Cedrela odorata tree were evaluated and compared with those containing hydroxypropylmethylcellulose (HPMC). Compressional properties were evaluated using Hausner'...

In vitro release of diclofenac diethylamine from gels: evaluation of generic semisolid drug products in Brazil

Braz. j. pharm. sci; 49 (2), 2013
In order for the pharmacological action of a topical dermal drug product to occur, the drug must first be released from the vehicle to be available to penetrate the skin layers and reach the site of action. Drug release is mainly dependent on the characteristics of the formulation. Currently, to register...

Formulation and evaluation of CFC free inhalers for beclomethasone dipropionate

Braz. j. pharm. sci; 49 (2), 2013
Beclomethasone dipropionate CFC free inhalation formulations were developed with a view to treat asthma prophylactically. Dry powder inhalers (DPI) for beclomethasone dipropionate were prepared with different grades of lactose monohydrate. The influence of carrier and overages on performance of DPI was s...