What is Botulinum Toxin Injections—Cosmetic?

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.

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This is most commonly used as a treatment to smooth wrinkles on the face and neck. It is FDA-approved for the treatment of frown lines between the brows.

Possible Complications

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 the brow line.

Temporary issues may include:

• Redness
• Bruising
• Stinging around the injection sites

The following are less common reactions. They are generally mild and do not last long.

• Nausea
• Fatigue
• Flu -like symptoms
• Headache

Other complications that may occur include:

• 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

**FDA Public Health Advisory for Botulinum...