Botulinum toxin type A is made from the bacteria that causes botulism. Botulinum toxin blocks
nerve activity in the muscles, causing a temporary reduction in muscle activity.
Botulinum toxin type A is used to treat cervical dystonia (severe spasms in the neck muscles),
or severe underarm sweating (hyperhidrosis).
Botulinum toxin type A is also used to treat certain eye muscle conditions caused by nerve
disorders. This includes uncontrolled blinking or spasm of the eyelids, and a condition in which the eyes
do not point in the same direction.
Botulinum toxin type A is also used to temporarily lessen the appearance of facial wrinkles.
Botulinum toxin type A may also be used for other purposes not listed in this medication guide.