The study was run by Roger A. Dailey, M.D., F.A.C.S., professor and Lester Jones Endowed Chair of oculofacial plastic surgery in the OHSU School of Medicine. "After two years of treatment at recommended intervals, patients can potentially cut the frequency, and thus the cost, of their Botox® treatments by half," said Dailey.
Dailey’s study was presented at the American Society for Aesthetic Plastic Surgery conference in Washington, D.C., on April 24. Allergan, Inc., the maker of Botox® Cosmetic, sponsored the study with an unrestricted educational grant.
The study also found Botox® to have a wrinkle-preventing—or prophylactic—effect. Patients who were administered injections between their 30s and 50s not only eliminated existing wrinkles, but also prevent new wrinkles from forming.
Previous studies suggested that patients should be injected with Botox® every three months in the glabellar region—the area between the eyebrows—to maintain a wrinkle-free appearance. According to Dailey, the frequency and cost of the treatment deterred some patients from starting or continuing a Botox® regimen.
The study monitored 50 women between the ages of 30 and 50. The women were injected regularly with Botox® over the course of two years. "We found that after the patient receives Botox© Cosmetic injections every four months for two years, the frequency of the injections can be changed to every six months and still achieve good results," said Dailey. "This demonstrates patients have the ability to achieve good results with broader treatment schedules and ultimately at a lower overall treatment cost.”
According to the American Society for Aesthetic Plastic Surgery, 2,557,068 patients underwent Botox® treatments in 2009 (257,786 of which were men). Botox® was approved by the FDA for cosmetic purposes in 2002.
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