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I’ve heard that BOTOX® can be taken up by motor nerves and transported into the brain. This sounds pretty scary to me. Is this something I should be concerned about? Does this effect account for BOTOX® side effects?

The safety of BOTOX® for the FDA approved indications have been very carefully investigated with millions treatments per year with very few side effects. The possible central activity of BOTOX® may be one of the reasons the treatment is so effective—you look good and feel good. The retrograde transport of BOTOX® may account for why BOTOX® is effective for headaches.

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