Chronic migraines are what were formerly known as “transformed” migraines. These are near daily headaches, sometimes with migraine features but otherwise with frequent features of tension headaches. This may sound trivial but the treatment for tension headaches, typically with analgesics, would only make this syndrome worse. We learned that treating these with migraine preventive medications proved mostly effective. The current International Classification of Headache Disorders defines chronic migraine as a recurrent headache that has been ongoing for the past 3 months, occurs on at least 15 days per month, lasts at least 4 hours per day, and has 8 or more days per month when the headache has features of a migraine or responds to a typical migraine medication.
Forehead – The horizontal lines and furrows on your forehead will not magically disappear. Which is why you should consider getting a Botox injection before they start to set in permanently. These lines will become more excessive with age, and will age to your appearance.Over time by repeatedly injecting these lines the deeply etched lines will become progressively improved

Do not inject into blood vessels. Introduction of these products into the vasculature may lead to embolization, occlusion of the vessels, ischemia, or infarction. Take extra care when injecting soft-tissue fillers; for example, inject the product slowly and apply the least amount of pressure necessary. Rare, but serious, adverse events associated with the intravascular injection of soft-tissue fillers in the face have been reported and include temporary or permanent vision impairment, blindness, cerebral ischemia or cerebral hemorrhage leading to stroke, skin necrosis, and damage to underlying facial structures. Immediately stop the injection if a patient exhibits any of the following symptoms: changes in vision, signs of a stroke, blanching of the skin, unusual pain during or shortly after the procedure. Patients should receive prompt medical attention and, possibly, evaluation by an appropriate healthcare professional specialist should an intravascular injection occur
The safety and effectiveness for the treatment of anatomic regions other than the mid-face with JUVÉDERM VOLUMA® XC; facial wrinkles and folds with JUVÉDERM® Ultra XC, JUVÉDERM® Ultra Plus XC, and JUVÉDERM VOLLURE™ XC; and the lips and perioral area with JUVÉDERM® Ultra XC and JUVÉDERM VOLBELLA® XC have not been established in controlled clinical studies
Botox® neurotoxin treatment helps control the symptoms of severe underarm sweating when topical medicines do not work well enough by temporarily blocking the chemical signals from the nerves that stimulate the sweat glands. When the sweat glands don’t receive chemical signals, the severe sweating stops. Botox® injections are expected to temporarily stop the production of excessive sweat in the treated areas only. Sweat continues to be produced elsewhere.
Remember that the skill of the injector is extremely important when considering Botox injections. Because Botox can have some very obvious and embarrassing side effects like drooping eyelids, blurry vision, and excessive bruising around the injection site, it's important to consult with an experienced injector. Unlike dermal fillers which can be melted away with a follow-up injection of hyaluronidase, there's not much you can do about a bad Botox experience other than wait it out.
Formation of neutralizing antibodies to botulinum toxin type A may reduce the effectiveness of BOTOX treatment by inactivating the biological activity of the toxin. The critical factors for neutralizing antibody formation have not been well characterized. The results from some studies suggest that BOTOX injections at more frequent intervals or at higher doses may lead to greater incidence of antibody formation. The potential for antibody formation may be minimized by injecting with the lowest effective dose given at the longest feasible intervals between injections.
When most people see the results of Botox, they are extremely pleased. Botox’s ability to iron out wrinkles is pretty impressive. The fine lines and wrinkles that were all you could see in the mirror appear much less severe and the overall appearance is refreshed and more relaxed and rejuvenated. Botox results typically last up to six months. Botox also acts as a preventative measure for wrinkles, as it prevents repetitive folding of the skin that come from the frequency of making expressions. By injecting Botox before wrinkles even form, you’re setting the stage for a younger look for years to come.

But today it's the medical uses of the drug that are the great moneymaker, in part because doctors are getting a better handle on how to use it. Botulinum toxin type A is one of seven neurotoxins produced from Clostridium botulinum. Contracting botulism is bad news: it can cause blurred vision, persistent trouble swallowing and worse. In one recent case, close to 30 people were hospitalized in Ohio in 2015 after attending a church potluck. One person died. The outbreak was ultimately attributed to a potato salad made from improperly home-canned potatoes that were harboring the bacteria. Given its level of toxicity, some countries have even explored its potential use as a bioweapon.
In double-blind, placebo-controlled chronic migraine efficacy trials (Study 1 and Study 2), the discontinuation rate was 12% in the BOTOX treated group and 10% in the placebo-treated group. Discontinuations due to an adverse event were 4% in the BOTOX group and 1% in the placebo group. The most frequent adverse events leading to discontinuation in the BOTOX group were neck pain, headache, worsening migraine, muscular weakness and eyelid ptosis.
After the injections, the patient will usually lay upright or semiupright on the exam table for about two to five minutes to make sure he or she feels good after the procedure, and then the patient should avoid lying down for two to four hours. If bruising is a concern, it will be important for the patient to avoid taking aspirin or related products, such as ibuprofen (Advil, Motrin) or naproxen (Aleve), if possible after the procedure to keep bruising to a minimum.
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.
Though botulinum toxin is available under different names, Botox is the only one that is FDA-approved for migraine prevention. To be considered for Botox, patients must have migraines 15 days or more per month, which is considered chronic daily migraine. About 4 million Americans have such migraines, according to the Migraine Research Foundation. Also, patients must have tried and failed on at least 2 other medications first.
Other things to know about Botox treatments: Some providers charge a consultation fee, which is waived if you choose to proceed with the injections but charged if you decline. Also, who is doing the injection? Make sure it’s a trained, certified professional. As in many other things, training and credentials are important. In some practices, a junior employee may perform the procedure for a lesser rate. Make sure that’s what you want.
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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.[27] 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.[27]

Botulinum toxin is a purified substance that's derived from bacteria. Injections of botulinum toxin block the nerve signals to the muscle in which it was injected. Without a signal, the muscle is not able to contract. The end result is diminished unwanted facial wrinkles or appearance. Commonly known types of botulinum toxin type A injections include Botox®, Dysport® and Xeomin®.


Forehead – The horizontal lines and furrows on your forehead will not magically disappear. Which is why you should consider getting a Botox injection before they start to set in permanently. These lines will become more excessive with age, and will age to your appearance.Over time by repeatedly injecting these lines the deeply etched lines will become progressively improved
Most insurance providers now recognize BOTOX as treatment for migraines. Some have specific criteria that patients must meet, or require documentation that you have gone through other treatment protocols before trying BOTOX. It can take several weeks to receive authorization to begin treatment. Check with your insurance provider to make sure you fulfill their requirements, and to begin the approval process.
I’ve had migraines since I was 12, but in 2015 my attacks got much worse. Without migraine-specific painkillers, my migraines make me queasy and tired, forcing me to go to bed with a freezing wet towel on my head. For the last two years, I’ve tried different medications, switched birth control pills, made lifestyle changes (less stress, more swimming, no alcohol) — to little avail. My migraines would improve for a while, but then they came back, worse than ever. Then this year, I finally discovered a treatment that works — Botox.
The cost of a Botox treatment is usually communicated as a flat cost, but can also be measured in individual injectable units. Each unit usually costs somewhere in the neighborhood of $15, but prices vary between geographic areas and between individual clinics. How many units are needed per treatment will depend on which areas of your face are being treated, and on your individual facial anatomy.

Most insurance providers now recognize BOTOX as treatment for migraines. Some have specific criteria that patients must meet, or require documentation that you have gone through other treatment protocols before trying BOTOX. It can take several weeks to receive authorization to begin treatment. Check with your insurance provider to make sure you fulfill their requirements, and to begin the approval process.
After working out techniques for freeze-drying, buffering with albumin, and assuring sterility, potency, and safety, Scott applied to the FDA for investigational drug use, and began manufacturing botulinum type A neurotoxin in his San Francisco lab. He injected the first strabismus patients in 1977, reported its clinical utility in 1980,[47] and had soon trained hundreds of ophthalmologists in EMG-guided injection of the drug he named Oculinum ("eye aligner").
The studies using Botox for depression, like other research into Botox's off-label potential, were so encouraging that they caught the attention of Allergan. In Rosenthal and Finzi's research, 74 people with major depressive disorder were randomly assigned to receive Botox injections or a placebo. Six weeks later, 52% of the people who received Botox experienced a drop in reported symptoms, compared with 15% of the people given a placebo. "Over 50% of people responding is a high number," says Finzi. "These are people who have already tried other treatments, and they are significantly depressed."
"Botox inactivates the muscle," Rowe tells SELF, "and therefore the muscle doesn't fire and pull on skin, thus reducing animation." However, when I asked Sobel what was happening during the exact incubation, he told SELF that "I'm not sure if anyone can give you an answer&we've noticed that when we inject it, it just takes three of four days for you to see the muscle contract."
It can also be expensive. Depending on your insurance, it can cost quite a lot of money — I've changed insurance providers since I first started, and my first provider was around $330 a month and charged me around $1,000 per Botox round (remember, that's four times a year). My new plan is much more expensive, around $600 a month, but the Botox copay is only $30 each time, so even if Botox is the only medical procedure I need to have done in the year, it made sense to switch.
Sarah of My Migraine Life is a mom living with chronic migraine and daily headaches who has tried a gamete of medications, alternative therapies and lifestyle changes. These experiences led her to write “My Migraine Life,” a website for people living with migraine and their caretakers devoted to telling stories, raising awareness, giving support, product reviews and more. My Migraine Life is a partner of the American Migraine Foundation.
The recommended dilution is 200 Units/2 mL, 200 Units/4 mL, 100 Units/1 mL, or 100 Units/2 mL with preservative-free 0.9% Sodium Chloride Injection, USP, depending on volume and number of injection sites desired to achieve treatment objectives (see Table 1). In general, no more than 50 Units per site should be administered using a sterile needle (e.g., 25-30 gauge) of an appropriate length. Localization of the involved muscles with electromyographic guidance may be useful.
Most insurance providers now cover the expense of Botox injections when they’re used to treat chronic migraines. If you don’t have insurance, or your insurance won’t cover the cost of the procedure, it may cost you several thousand dollars. Before you begin receiving injections, talk to your insurance company. In some cases, they may require you to undergo other procedures or tests before they will cover the costs of Botox treatments.
The median duration of response in Study OAB-1 and OAB-2, based on patient qualification for re-treatment, was 19-24 weeks for the BOTOX 100 Unit dose group compared to 13 weeks for placebo. To qualify for re -treatment, at least 12 weeks must have passed since the prior treatment, post-void residual urine volume must have been less than 200 mL and patients must have reported at least 2 urinary incontinence episodes over 3 days.
I had a consult and the doctor quickly realized that I was a candidate for Botox. He ordered an MRI and doppler of my brain to make sure everything else was A-OK, and then the rest was just waiting on my insurance company. With Botox (I’m not sure if it’s all Botox or just prescription), the insurance company orders it from a pharmacy and sends it to the doctor.
Potential Botox side effects include pain at the injection site, infection, inflammation, swelling, redness, bleeding and bruising. Some of these symptoms may indicate an allergic reaction; other allergy symptoms are itching, wheezing, asthma, a rash, red welts, dizziness and faintness. Tell your doctor immediately if you have any breathing issues or a faint or dizzy feeling.
Botox (also known as Vistabel outside the U.S. and the U.K.) is an injection that temporarily relaxes facial muscles to reduce the appearance of fine lines and wrinkles, as well as prevent new lines from forming. Common injection sites include the forehead, the area between the eyebrows, the corners of the eyes, and the sides of the chin. Botox can also be used for a wide variety of other conditions, including migraines, excessive sweating, and psoriasis. LEARN MORE ›

"Botox is a toxin that is extracted from a certain bacteria. It's been used for a couple of hundred years in medicine. It was first used in neurological conditions rather than cosmetic ones. It was first approved to treat spasms of the face and eye muscles. Only later was it discovered coincidentally that it could world for cosmetic purposes, like wrinkles," he says.
“I see a lot of patients who come in from sun damage, or who have creases in their foreheads, more lines around the sides of their mouths, crow's feet, and wrinkles on the side of their nose,” Shah says. “At this age, a dermatologist can inject Botox in the right places to help train a person’s face to no longer fall into that habit, which can help decrease the odds that they’ll develop permanent wrinkles in those spots later on.”
It's safe to say that the mouth is the clearest giveaway of work done too early. Youthful lips tend to have substantial volume and turn up naturally at the corners, meaning the best strategy for flattering them often comes down to a good signature lip color. For women who remain self conscious about the size or symmetry of their lips—think a slightly lopsided appearance, for instance—Botox can be injected into the orbicularis oris muscle along the lip line as an alternative to lip fillers. "When certain individuals smile, the lip flips in and they lose that upper volume," says Dara Liotta, a New York City-based plastic and cosmetic surgeon. "This relaxes the outer layers of the circular muscle around the lips and looks much more natural than filler." Additionally, injections along the jawline—or more specifically, the masseter muscle—have risen in popularity to relieve stress-induced jaw clenching and have also been known to refine the area. "A lot of people hold tension in the jaw area and when you relax that muscle, the chin comes out of the shadow of your lower lip,” explains Liotta. But the best advice of all? Forget about those self-perceived imperfections and smile. You're only in your '20s once.
Khalaf Bushara and David Park were the first to demonstrate a nonmuscular use of BTX-A while treating patients with hemifacial spasm in England in 1993, showing that botulinum toxin injections inhibit sweating, and so are useful in treating hyperhidrosis (excessive sweating).[85] BTX-A has since been approved for the treatment of severe primary axillary hyperhidrosis (excessive underarm sweating of unknown cause), which cannot be managed by topical agents.[11][24]
Contrary to popular belief, the bacteria that causes botulism, clostridium botulinum, is not part of the treatment, nor are six of the seven neurotoxins it secretes. The only substance used in Botox injections, botulinum toxin A, is carefully extracted, purified, and standardized into FDA-approved doses. Plus, the dosage is so small, it can't get beyond the muscle tissue it's injected into, meaning there's little if any chance for Botox to reach the bloodstream.

Botox takes three to five days to kick in, with the full effect becoming apparent within two weeks. Some people say they know when it’s taken effect because it suddenly feels like there’s duct tape on their forehead. “Botox will affect the way your facial muscles move, and it can feel funny when you can’t move your face to make a particular expression,” Dr. Shainhouse explains. “Also, sometimes injection of Botox in one area can affect another area—for example, injecting too low on the forehead to reduce wrinkles above the brows can actually end up lowering the brows, which is not always ideal. You may also experience a super-tight feeling in the beginning, before your body has time to adjust to the toxin.” These are the 50 things your surgeon won’t tell you.
On November 23, 2015, Allergan and Pfizer announced their intention to merge in a $160 billion transaction, the largest pharmaceutical deal and the third largest merger in history.[19] On April 5, 2016, after the Obama administration announced its plan to ban tax inversions, Pfizer terminated the acquisition and paid Allergan a $150 million breakup fee.[20]
Unlike some resurfacing or surgical procedures, after which there is possible pigmentation or scarring, when Botox is done correctly, it can be done on all skin tones. “This is a procedure [and] product that crosses all divides,” says Dr. Matarasso. “Men, women, Caucasian, African-American, Asian, Indian. I don’t think there is a demographic that has not enjoyed the benefit of this product.”
A randomized, multi-center, double-blind, placebo-controlled study of the treatment of cervical dystonia was conducted. This study enrolled adult patients with cervical dystonia and a history of having received BOTOX in an open label manner with perceived good response and tolerable side effects. Patients were excluded if they had previously received surgical or other denervation tre atment for their symptoms or had a known history of neuromuscular disorder. Subjects participated in an open label enrichment period where they received their previously employed dose of BOTOX. Only patients who were again perceived as showing a response were advanced to the randomized evaluation period. The muscles in which the blinded study agent injections we re to be administered were determined on an individual patient basis.
“Botox is a completely cosmetic procedure, so if and when someone ‘needs’ it is a purely personal decision,” Shah says. “Some people are not bothered by developing fine lines and wrinkles. For those who are, I generally advise starting treatments just when they start to see the lines develop, or when the wrinkles linger even after the movement has stopped.”
But in a recent Fat Mascara podcast, NYC dermatologist Pat Wexler, MD, said this is a myth. And Dr. Matarasso falls somewhere in-between. “For aesthetic or cosmetic reasons, does a 19-year-old need this? No. Does a 26-year-old need this for aesthetic purposes? Highly doubtful. But, hey, listen, if you are like, ‘I am looking at my parents, I am looking at my genes, and I want to stay proactive,’ it is not unreasonable to introduce it in small amounts.”

I increase the dose at each treatment cycle to 195 units. This is based on experience with patients with cervical dystonia, in whom higher doses result in a longer duration of effect. In addition, I transition to the next onabotulinumtoxinA treatment at 12 weeks by using occipital and trigeminal nerve blocks at 10 weeks. Most insurance companies will not cover onabotulinumtoxinA treatments earlier than 12 weeks, but in rare cases, 10-week cycles have been approved.
The recommended dilution is 200 Units/4 mL or 100 Units/2 mL with preservative -free 0.9% Sodium Chloride Injection, USP (see Table 1). The lowest recommended starting dose should be used, and no more than 50 Units p er site should generally be administered. An appropriately sized needle (e.g., 25-30 gauge) may be used for superficial muscles, and a longer 22 gauge needle may be used for deeper musculature. Localization of the involved muscles with techniques such as needle electromyographic guidance or nerve stimulation is recommended.

When BOTOX (4, 8, or 16 Units/kg) was administered intramuscularly to pregnant mice or rats two times during the period of organogenesis (on gestation days 5 and 13), reductions in fetal body weight and decreased fetal skeletal ossification were ob served at the two highest doses. The no-effect dose for developmental toxicity in these studies (4 Units/kg) is approximately equal to the human dose of 400 Units, on a body weight basis (Units/kg).
No definitive serious adverse event reports of distant spread of toxin effect associated with dermatologic use of BOTOX® Cosmetic at the labeled dose of 20 Units (for glabellar lines), 24 Units (for lateral canthal lines), 40 Units (for forehead lines with glabellar lines), 44 Units (for simultaneous treatment of lateral canthal lines and glabellar lines), and 64 Units (for simultaneous treatment of lateral canthal lines, glabellar lines, and forehead lines) have been reported.
In general, the initial effect of the injections is seen within three days and reaches a peak at one to two weeks post-treatment. Each treatment lasts approximately three months, following which the procedure can be repeated. At repeat treatment sessions, the dose may be increased up to two-fold if the response from the initial treatment is considered insufficient, usually defined as an effect that does not last longer than two months. However, there appears to be little benefit obtainable from injecting more than 5 Units per site. Some tolerance may be found when BOTOX is used in treating blepharospasm if treatments are given any more frequently than every three months, and is rare to have the effect be permanent.
"The cost for a procedure depends on two main factors," explains Joshua Zeichner, MD, a board-certified dermatologist. "First, different products cost different amounts because of the technology that goes into their manufacturing. In addition, the cost depends on the fee of the injector. If you are seeing a sought-after, skilled injector, you may be paying a premium for that treatment. Especially when getting injectable fillers, your treatment is dependent on the skill and aesthetic of your injector. I do not recommend compromising here or purchasing a deal on websites like Groupon."

Medicine to help the patient relax may be given in cases where the patient has not handled shots well in the past. If the patient has another procedure coming up, these shots can often be done at this time. Let the Rehabilitation Medicine office (513-636-7480) know if a procedure or surgery will be done in the future or if sedation is being discussed for injections in the clinic setting.

Just like any medical procedure the Botox treatment rarely comes with a few possible side-effects that are temporary. The frequency of complications generally decreases the more knowledge of facial anatomy that your injector possesses and the greater the experience of knowing where and how much to inject.That is not to say that complications can occur in anyones hands but the incidence decreases with greater experience.Allergic reactions to Botox or Dysport is exceedingly rare in my experience.
Most physicians pay roughly the same amount of money to purchase a vial of Botox. However, the cost of a Botox treatment is not the same among all providers. Botox is not an ordinary commodity such as wheat or sugar or flour. Botox is a medical procedure that requires nuance, experience and expertise. All Botox providers are not equal in education or skill and some are actually quite poor. Most Botox providers charge either by the amount of Botox used or by the region of the face treated. I feel that charging by the amount of Botox used is the most equitable.
Lastly, a Botox treatment does not offer permanent results. Botox is most effective when treatments are carried out at regular intervals before the results fully wear off. On average, the results last for three to four months,  although Botox metabolizes at different rates in different individuals. The first ever Botox treatment you receive may not last as long as subsequent treatments, plus you may require touch-ups two weeks after the procedure as your injector determines the right dosage for you. Over time, however, many patients notice that they can wait longer intervals between treatments as their treated facial muscles weaken.
The overall cost of  the injection is charged either at a flat rate or per unit. In terms of per unit, the overall cost of the treatment will depend on the total volume or a total number of units used in the procedure. But service charged at a flat rate depends on the area to be treated. The most expensive area is around the underarm for treating hyperhidrosis.
The potency Units of BOTOX (onabotulinumtoxinA) for injection 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 [see WARNINGS AND PRECAUTIONS and DESCRIPTION] .
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These injection sites have been carefully chosen to treat specific nerve endings that are sending pain signals. BOTOX for migraines has proven to be a highly-effective treatment for people who are living with the painful, debilitating symptoms of chronic migraines. BOTOX will be carefully and correctly injected into muscles just beneath the skin. The procedure is not particularly painful, with a sensation of pinpricks.

Botox only lasts three to six months—and yet what's less commonly discussed is this: Facial muscles naturally weaken over time and going overboard in a certain area could have unwanted consequences. "If you do too much Botox on your forehead for many, many years, the muscles will get weaker and flatter," cautions Wexler, adding that the skin can also appear thinner and looser. Moreover, as your muscles become weaker, they can start to recruit surrounding muscles when you make facial expressions. "If one stops using their forehead muscles, they may start squinting using their nose and have wrinkles along the side of their nose," she explains. Translation: You need even more Botox for the newly recruited muscles, says Wexler. To avoid these kind of missteps, researching a doctor diligently is essential, as is approaching injectables conservatively, and asking questions about how the treatment will be tailored to your needs.
Around The Eyes – It is common to see wrinkles and creases around your eyes, as the muscles around your eyes are constantly contracting when you talk or smile. The crow’s feet that have formed on the corner of your eyes can be effectively reduced with the help of Botox.  Moreover, a Botox can help diminish the fine creases that have formed under your eyes.

Patients with compromised respiratory status treated with BOTOX for spasticity should be monitored closely. In a double-blind, placebo-controlled, parallel group study in patients treated for upper limb spasticity with stable reduced pulmonary function (defined as FEV1 40-80% of predicted value and FEV1/FVC ≤0.75), the event rate in change of Forced Vital Capacity (FVC) ≥15% or ≥20% was generally greater in patients treated with BOTOX than in patients treated with placebo (see Table 5).
Allergan PLC (AGN) is a large market cap ($65B) biopharmaceutical company with a pipeline of innovative and generic therapeutics for diseases affecting the eyes, bowel, lungs, skin, urogenital systems and brain. Through the acquisition of Tobira Pharmaceuticals and its assets including cenicriviroc (CVC), Allergan is one of the leaders in the clinical development of anti-NASH therapeutics (the focus of this article).
Botox can be bought by essentially any person with a DEA certificate. Allergan sells it in 50 and 100 unit vials. They are shipped overnight delivery on dry ice to keep the toxin effective it should be opened, reconstituted and used the same day ideally. The Botox will work best this way. Price points will change by who the injector is and what their motives are. Botox can be reconstituted so that you getting a very dilute amount of product. So a by the area approach may really only give you a small amount of product. Or you could be getting old Botox that is a week old and will not last for very long.
* LS mean change, treatment difference and p-value are based on an analysis using an ANCOVA model with baseline weekly endpoint as covariate and treatment group, etiology at study entry (spinal cord injury or multiple sclerosis), concurrent anticholinergic therapy at screening, and investigator as factors. LOCF values were used to analyze the primary efficacy variable.
In response to the occurrence of these side effects, in 2008 the U.S. Food and Drug Administration notified the public of the potential dangers of the botulinum toxin as a therapeutic. Namely, they warned that the toxin can spread to areas distant from the site of injection and paralyze unintended muscle groups, especially when used for treating muscle spasticity in children treated for cerebral palsy.[28] In 2009, the FDA announced that boxed warnings would be added to available botulinum toxin products, warning of their ability to spread from the injection site.[29] Additionally, the FDA announced name changes to several botulinum toxin products, meant to emphasize that the products are not interchangeable and require different doses for proper use. Botox and Botox Cosmetic were renamed onabotulinumtoxinA, Myobloc was renamed rimabotulinumtoxinB, and Dysport name renamed abobotulinumtoxinA.[29] In conjunction with this, the FDA issued a communication to health care professionals reiterating the new drug names and the approved uses for each.[30] A similar warning was issued by Health Canada in 2009, warning that botulinum toxin products can spread to other parts of the body.[31]
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