The use of accelerated temperature stability studies using the Arrhenius relationship is routine for estimating the stability of a drug at room temperature. Therefore, the acceleration method is used to determine the expiration date of dexamethasone aqueous formulation manufactured in Iran. A high-performance liquid chromatography (HPLC) method utilizing ultraviolet (UV) detection for dexa...

Martin A. Weinstock, MD, PhD Professor of Dermatology and Community Health Alpert Medical School Brown University Providence, Rhode Island Original Release Date: December 2011 Most Recent Review Date: December 2011 Expiration Date: December 2013 Estimated Time to Complete Activity: 2.0 hour(s) Medium or Combination of Media Used: Written Supplement Method of Physician Participation: Journal Sup...

Background: Milk can provide a good medium for growth and proliferation of various spoilage and pathogenic microorganisms. The main aim of this study was to evaluate the chemical and microbial quality of Iranian commercial pasteurized milk samples at their expiration date. Methods: Hundred samples of pasteurized milk packaged in polyethylene pouches were randomly collected from local markets o...

BACKGROUND Because a recent cluster of false positive results on the OraQuick ADVANCE Rapid HIV-1/2 Antibody Test occurred in San Francisco on test kits close to their expiration date, we decided to assess the relationship between time to expiration and rate of false positive results from tests used with oral fluid. METHODOLOGY/PRINCIPAL FINDINGS We analyzed results of 20,904 tests with eithe...