Muscle Relaxants

Botox Cosmetic is the brand name for a specific type of botulinum type A toxin, called onabotulinumtoxin-A (ONA).   Botox Cosmetic was first approved in 2002.  

Botox Cosmetic functions by blocking signals to muscles that normally tell the muscle to contract, therefore relaxing them.  The overlying skin than does not move thus reducing dynamic wrinkles. The effects last an average of 3 months. It takes 2 weeks to notice maximum results.