Botulinum toxin is made from a type of bacteria. It is toxic to the nerves. Another name for it is bacterial neurotoxin. An injection puts this toxin into muscle. There, it blocks the chemical signal from the nerves to muscles. This will decrease the muscle contraction (tightening).
There are several types and brands of this toxin. Examples include Botox, Dysport, and Reloxin, which are formulations of botulinum toxin type A. Myobloc is another brand, but it is a formulation of botulinum toxin type B. These products are used for cosmetic and medical reasons.
This injection process is often called botox injection, although any brand of the botulinum toxin may be used.
Reasons for Procedure
The injection is FDA-approved to treat:
Cervical dystonia (abnormal spasms of neck muscles)
Complications are rare. When they occur, they are temporary and mild. Side effects are related to the site of injection. For example, if injections take place near the eyes, there may be complications with eyelids or brow line.
Temporary issues may include:
Stinging around the injection sites
The following are less common reactions. They are generally mild and do not last long.
Excessive weakness of the muscle around the eyes—can cause drooping of the eyelids or obstruction of vision
Difficulty swallowing—can occur in patients receiving injections in their neck
Compensatory hyperhidrosis—people being treated for hyperhidrosis may develop increased sweat production at another area of the body
Excessive weakness or atrophy (wasting) in chosen muscles—the injection may slow any improvement in the muscle
Neck weakness in people with long, thin necks
Risk of the botulinum toxin spreading beyond the injection area—may cause botulism symptoms, including difficulty breathing and death in severe cases (Children with cerebral palsy may be at a higher risk for this side effect.)
This procedure may worsen nerve or muscle disorders, such as:
Please be aware that this information is provided to supplement the care
provided by your physician. It is neither intended nor implied to be a
substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER
IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the
advice of your physician or other qualified health provider prior to
starting any new treatment or with any questions you may have regarding a