Botulinum Toxin Type A is a drug made from a toxin produced by the bacterium Clostridium botulinum.  Doctors use it in small doses to treat health problems, including:

• Temporary smoothing of facial wrinkles and improving your appearance.

• Severe underarm sweating.

• Chronic migraine.

Botulinum Toxin Type A injections work by weakening or paralyzing certain muscles or by blocking certain nerves.  The effects last about three to twelve months, depending on what you are treating.