Results: 9

Development and validation of alternative methods by non-aqueous acid-base titration and derivative ultraviolet spectrophotometry for quantification of sildenafil in raw material and tablets

Sildenafil citrate (SILC) is a potent phosphodiesterase-5 inhibitor used for erectile dysfunction and pulmonary hypertension. This study shows two simple, fast and alternative analytical methods for SILC determination by non-aqueous titration and by derivative ultraviolet spectrophotometry (DUS) in activ...

Validación del método espectrofotométrico para control de calidad de la colchicina en Artrichine tabletas
Validation of the spectrophotometric method for the quality control of Artrichine tablets

Rev. cuba. farm; 50 (1), 2016
Introducción: la colchicina es una alternativa terapéutica indicada por vía oral para las crisis agudas de la gota. Se formula en tabletas de baja dosificación debido a su elevada toxicidad. Los Laboratorios Dr.A. Bjarner C.A producen las tabletas de Artrichine y se requiere de un método sencillo, p...

Phenobarbital loaded microemulsion: development, kinetic release and quality control

Braz. j. pharm. sci; 52 (2), 2016
ABSTRACT This study aimed to obtain and characterize a microemulsion (ME) containing phenobarbital (PB). The PB was incorporated in the proportion of 5% and 10% in a microemulsion system containing Labrasol(r), ethanol, isopropyl myristate and purified water. The physicochemical characterization was perf...

Validation of a UV-spectrophotometric analytical method for determination of LPSF/AC04 from inclusion complex and liposomes

Braz. j. pharm. sci; 51 (1), 2015
The aim of this study was to develop and validate a UV spectrophotometric method for determination of LPSF/AC04 from inclusion complex and encapsulated into liposomes. The validation parameters were determined according to the International Conference on Harmonisation (ICH) and National Health Surveillan...

Validación del método por espectrofotometría ultravioleta para control de calidad de clorhidrato de ciprofloxacina en tabletas Ciprecu
Validation of the ultraviolet spectrophotometry method for the quality control of ciprofloxacin chlorhydrate in Ciprecu tablets

Rev. cuba. farm; 48 (2), 2014
INTRODUCCCIÓN: las quinolonas son un grupo de agentes antimicrobianos de gran importancia en la clínica. El clorhidrato de ciprofloxacina monohidrato es una fluoroquinolona antibacterial de segunda generación que se indica en el tratamiento de diversas infecciones y se comercializa en forma de colirio...

Validation of impregnation process for homeopathic globules by spectrophotometric-UV method

Braz. j. pharm. sci; 50 (1), 2014
We compared the impregnation techniques for globules according to the Manual of Technical Norms for Homeopathic Pharmacies (MNTFH) of the Association of Homeopathic Pharmacists (ABFH), Brazilian Homeopathic Pharmacopoeia (FHB) and variations of these techniques. The variables were evaluated in this proce...

Test of dissolution and comparison of in vitro dissolution profiles of coated ranitidine tablets marketed in Bahia, Brazil

Braz. j. pharm. sci; 50 (1), 2014
Ranitidine is an antisecretory drug with H2 antagonist action useful in treating gastric and duodenal disorders. The dissolution test is used to obtain and compare dissolution profiles and establish similarities of pharmaceutical forms. The aim of this study was to compare the dissolution profiles of 150...

Development and validation of UV spectrophotometric method for orbifloxacin assay and dissolution studies

Braz. j. pharm. sci; 50 (3), 2014
New, simple and cost effective UV-spectrophotometric method was developed for the estimation of orbifloxacin in pharmaceutical formulation. Orbifloxacin was estimated at 290 nm in 0.5 M hydrochloric acid. Linearity range was found to be 1.0-6.0 μg mL-1. The method was tested and validated for variou...