Tuesday, September 23, 2014

Study shows inconsistent dosages of widely used eye disease drug

Custom-made versions of a widely prescribed, low-cost drug used to prevent a leading cause of blindness in the elderly vary widely in their dosages, Weill Cornell Medical College scientists found in analyses of the eye injections. Investigators saw no evidence of impurities or contamination but found that many of the samples, which were prepared by pharmacists through a process called compounding, contained less medication than doses of the drug obtained directly from the manufacturer. The research, published today in JAMA Ophthalmology, is likely to increase scrutiny of compounding pharmacies, which tailor-mix drugs for individual patients, and to question whether eye-care specialists should continue to prescribe the cancer drug Avastin for age-related macular degeneration (AMD).


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