MONDAY, June 20 (HealthDay News) -- A more recently approved version of botulinum toxin type A beat the anti-wrinkle medication Botox in a trial that compared the respective powers of each in erasing those unwanted lines of aging around the eyes known as "crow's feet."
"One month after treatment, on a two-to-one preference basis, patients picked Dysport over the Botox in terms of wrinkle improvement," said study co-author Dr. Corey S. Maas, an associate clinical professor at the University of California, San Francisco, as well as a plastic surgeon with The Maas Clinic, based in San Francisco and Lake Tahoe.
"So, we can say that when it comes to addressing the smile lines around the eyes, the crow's feet, at one month the Dysport is more effective than Botox," Maas said. "And that's a big deal, because Botox is such a recognized household name now. And it's such a great drug. But when you have something that comes in that's as good in some areas, let alone even better, it's big news for all of us, both doctors and patients."
Maas and his colleagues report the findings in the June 20 online edition of the Archives of Facial Plastic Surgery.
In 2002, the U.S. Food and Drug Administration first approved a particular form of botulinum toxin type A; this drug is popularly known as Botox and is manufactured by Allergan Inc.
An alternate version of the same botulinum toxin was approved in Europe in 2001 for general cosmetic applications. The drug, known as Dysport, is manufactured by Medicis Aesthetics; this version of botulinum was approved for use in the United States in 2009.
To compare the efficacy of both, the research team focused on 77 women and 13 men aged 18 and up between 2009 and 2010. None had previously undergone a facelift, brow lift or laser/chemical resurfacing. None had been exposed to botulinum in any form in the six months prior to the study l
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