Botulinum Toxins seem to affect also other muscles other than the ones it's injected into, according to an investigation published in the Jan. 2011 issue of Anesthesia and Analgesia.
The study, led by Christiane G. Frick, MD, of Massachusetts General Hospital in Boston, found that rats injected with Botulinum Toxin displayed lasting effects on muscles after injection and not only restricted to the injected area.
Botulinum Toxin also appeared to change the way muscles responded to a commonly used muscle relaxant, potentially affecting monitoring patients during mechanical ventilation or surgery.
In case you had Botulinum Toxin injections for cosmetic or other purposes, please notify your anesthesiologist before surgery.
Note: These findings are based on only one study.
Botulinum Toxins are still considered to be a very safe and effective non invasive wrinkle treatment supported by many studies regarding safety and efficacy & extensive experience.
Read more about Botulinum Toxins Safety
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