In cosmetic applications, botulinum toxin is considered safe and effective for reduction of facial wrinkles, especially in the uppermost third of the face. Injection of botulinum toxin into the muscles under facial wrinkles causes relaxation of those muscles, resulting in the smoothing of the overlying skin. Smoothing of wrinkles is usually visible three days after treatment and is maximally visible two weeks following injection. The treated muscles gradually regain function, and generally return to their former appearance three to four months after treatment. Muscles can be treated repeatedly to maintain the smoothed appearance.
The potency Units of BOTOX® are specific to the preparation and assay method utilized. They are not interchangeable with other preparations of botulinum toxin products and, therefore, Units of biological activity of BOTOX® cannot be compared to nor converted into Units of any other botulinum toxin products assessed with any other specific assay method.
30+ year migraine warrior, wife, mother, corporate exec turned health advocate, Paula is Migraine Again Managing Editor and Chief Encouragement Officer. She champions patient's needs as an American Migraine Foundation Board Member, CHAMP Coalition Leader, IHS Patient Advocate and co-author of CaMEO and My Migraine Voice research studies. In addition to hosting the Migraine Again Podcast and producing the Migraine World Summit, Paula is a frequent speaker at industry, health care and public policy events. She's also the Founder and CEO of the World Health Education Foundation, a 501c3. Follow her on LinkedIn or Facebook.
The trapezius muscle is a large, triangular, superficial muscle. It attaches proximally in the medial third of the superior nuchal line, external occipital protuberance, nuchal ligament, and spinous processes of the C7-T12 vertebrae. Distal attachment of the trapezius occurs at the lateral third of the clavicle and acromion and spine of the scapula. The action of the muscle includes neck extension and stabilization of the scapula and support for the arm. The muscle fibers proximal to the inflection point of the neck (ie, necklace line) run vertically and are involved with neck extension. According to the PREEMPT injection paradigm, one injection of 5 units of onabotulinumtoxinA to each of three sites on either side of the trapezius, for a total of 30 units divided across six sites, is given. The first injection site can be identified by visually dividing the upper portion of the trapezius muscle in half, from the inflection point of the neck (ie the necklace line) to the acromion (acromio-clavicular joint); the midpoint of this location is where the injection should be administered. The second injection is located at the midpoint of the first injection site and the acromion. The third injection should be administered at the midpoint between the first injection site and the necklace line. Injections should occur in the supraclavicular portion of the muscle, lateral to the neckline, and medial to the deltoid and the acromio-clavicular joint. The injections into the trapezius should be administered horizontally and superficially to avoid injecting too deep.
Side effects from therapeutic use can be much more varied depending on the location of injection and the dose of toxin injected. In general, side effects from therapeutic use can be more serious than those that arise during cosmetic use. These can arise from paralysis of critical muscle groups and can include arrhythmia, heart attack, and in some cases seizures, respiratory arrest, and death. Additionally, side effects which are common in cosmetic use are also common in therapeutic use, including trouble swallowing, muscle weakness, allergic reactions, and flu-like syndromes.
Botulinum toxin exerts its effect by cleaving key proteins required for nerve activation. First, the toxin binds specifically to nerves which use the neurotransmitter acetylcholine. Once bound to the nerve terminal, the neuron takes up the toxin into a vesicle. As the vesicle moves farther into the cell, it acidifies, activating a portion of the toxin which triggers it to push across the vesicle membrane and into the cell cytoplasm. Once inside the cytoplasm, the toxin cleaves SNARE proteins preventing the cell from releasing vesicles of neurotransmitter. This stops nerve signaling, leading to paralysis.
With this in mind, the average cost for treating forehead lines varies from approximately $200 to $600. Patients with fine lines or smaller facial muscles won’t require as many units of Botox to achieve a successful outcome, whereas patients with stronger facial muscles (such as pronounced corrugator muscles which cause deeper frown lines) could require more.
Botox stays only where injected, it does not roam through the body. "If I inject it in your face, it's not going to work [or show up in] your toe," says Rowe. "It does not have a systemic effect." However, it may migrate up to 3 cm from where it was injected. But even if some molecules were to go into the bloodstream and travel to distant sites in the body, the cosmetic doses (typically less than 100 units) used are significantly lower than the toxic dose that would be harmful systemically (2,500-3,000 units).
Tell your doctor if you received any other botulinum toxin product in the last 4 months; have received injections of botulinum toxin such as Myobloc®, Dysport®, or Xeomin® in the past (tell your doctor exactly which product you received); have recently received an antibiotic injection; take muscle relaxants; take allergy or cold medicines; take sleep medicine; take aspirin-like products or blood thinners.
Currently, to participate in ARMR, you must be a patient at one of the study’s enrolling medical centers. You can see a full list of the participating centers here. “The number of centers participating in the ARMR is growing rapidly,” Dr. Schwedt says. “There will be eight or nine centers by the end of this year, and ARMR will continue to grow in 2019.” Patients at any of the participating centers who are interested in ARMR can visit ARMR.org to learn more and can contact their clinician’s office to find out how to enroll. Once enrolled, participants answer online questionnaires, provide a blood sample, and maintain a daily headache diary. Visit the ARMR website for more information and to learn about how you can get involved in the study.
Autonomic dysreflexia in patients treated for overactive bladder due to neurologic disease. Autonomic dysreflexia associated with intradetrusor injections of BOTOX® could occur in patients treated for detrusor overactivity associated with a neurologic condition and may require prompt medical therapy. In clinical trials, the incidence of autonomic dysreflexia was greater in patients treated with BOTOX® 200 Units compared with placebo (1.5% versus 0.4%, respectively).