Most commercial embolic agents have a low degree of crystallinity, and the correlation between the drug-delivery rate and the degree of crystallinity is not fully understood. This study presents the appropriated synthesis conditions for the preparation of highly crystalline poly(vinyl alcohol) and poly(vinyl alcohol)/poly(vinyl acetate) microspheres and physicochemical characterizations by scanning SB203580 molecular weight electron microscopy, X-ray diffraction, differential scanning calorimetry, and cross-polarization/magic angle spinning nuclear magnetic resonance. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 1417-1423, 2011″
“Objectives:
A randomized, double-blind, double-dummy, multicenter international study was conducted to assess the clinical and bacteriologic response, safety, and compliance of a single 60-mg/kg dose of azithromycin extended-release (ER) versus a 10-day regimen of amoxicillin/clavulanate 90/6.4
mg/kg per day in children with acute otitis media at high risk of persistent or recurrent GNS-1480 in vivo middle ear infection.
Methods: Children aged 3 to 48 months were enrolled and stratified into two age groups (<= 24 months and >24 months). Pretreatment tympanocentesis was performed at all sites and was repeated during treatment at selected sites.
Results: The primary endpoint, clinical response at the test-of-cure visit in the bacteriologic eligible population, was achieved in 80.5% of children in the azithromycin ER group and 84.5% of children in the amoxicillin/clavulanate group (difference -3.9%; A-1210477 in vivo 95% confidence interval -10.4, 2.6). Bacteriologic eradication was 82.6% in the azithromycin ER group and 92% in the amoxicillin/clavulanate group (p = 0.050).
Children who received amoxicillin/clavulanate had significantly higher rates of dermatitis and diarrhea, a greater burden of adverse events, and a lower rate of compliance to study drug compared to those who received azithromycin ER.
Conclusions: A single 60-mg/kg dose of azithromycin ER provides near equivalent effectiveness to a 10-day regimen of amoxicillin/clavulanate 90/6.4 mg/kg per day in the treatment of children with acute otitis media. (C) 2011 International Society for Infectious Diseases. Published by Elsevier Ltd. All rights reserved.”
“Ritonavir is an antiretroviral drug characterized by low solubility and high permeability which corresponds to BCS class II drug. The purpose of the study was to develop solid dispersion by different methods and investigate them for in vitro and in vivo performance for enhancing dissolution and bioavailability, respectively. Since the drug possesses food-related absorption, the effect of biorelevant media (FaSSIF and FeSSIF state) on dissolution behavior was also studied.