The primary release procedure for BOTOX uses a cell-based potency assay to determine the potency relative to a reference standard. The assay is specific to Allergan's products BOTOX and BOTOX Cosmetic. One Unit of BOTOX corresponds to the calculated median intraperitoneal lethal dose (LD50) in mice. Due to specific details of this assay such as the vehicle, dilution scheme, and laboratory protocols, Units of biological activity of BOTOX cannot be compared to nor converted into Units of any other botulinum toxin or any toxin assessed with any other specific assay method. The specific activity of BOTOX is approximately 20 Units/nanogram of neurotoxin protein complex.
Serious adverse reactions, including excessive weakness, dysphagia, and aspiration pneumonia, with some adverse reactions associated with fatal outcomes, have been reported in patients who received BOTOX® injections for unapproved uses. In these cases, the adverse reactions were not necessarily related to distant spread of toxin, but may have resulted from the administration of BOTOX® to the site of injection and/or adjacent structures. In several of the cases, patients had pre-existing dysphagia or other significant disabilities. There is insufficient information to identify factors associated with an increased risk for adverse reactions associated with the unapproved uses of BOTOX®. The safety and effectiveness of BOTOX® for unapproved uses have not been established.
In a study to evaluate inadvertent peribladder administration, bladder stones were observed in 1 of 4 mal e monkeys that were injected with a total of 6.8 Units/kg divided into the prostatic urethra and proximal rectum (single administration). No bladder stones were observed in male or female monkeys following injection of up to 36 Units/kg (~12X the highest human bladder dose) directly to the bladder as either single or 4 repeat dose injections or in female rats for single injections up to 100 Units/kg (~33X the highest human bladder dose).
How Long Do Botox Treatments Last?  Before you begin you should know that effects of Botox last about three to four months. That’s all – when practitioners make claim that it lasts longer don’t believe them because it doesn’t. So when you factor in the cost of Botox or Dysport you should know that in order to maintain the beneficial effects of these injections you will probably repeat the treatment three to four times a year.
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"There is a difference in pricing based on the duration of the results," says L.A.-based injection specialist Lisa Goodman. (FYI: She's incredible, and I emphatically recommend seeing her if you're in L.A. or Dara Liotta, MD, if you're in NYC.) "The longer-lasting formulas cost more upfront. Shorter-term fillers can last from six to 11 months based on the patient's rate of aging (i.e., smoking, drinking, sun exposure, genetics), while the longer-term fillers last about one to two years."
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®.
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.
Study 4 included 170 patients (87 BOTOX and 83 placebo) with upper limb spasticity who were at least 6 months post-stroke. In Study 4, patients received 20 Units of BOTOX into the adductor pollicis and flexor pollicis longus (total BOTOX dose =40 Units in thumb muscles) or placebo (see Table 30). Study 5 included 109 patients with upper limb spasticity who were at least 6 months post-stroke. In Study 5, patients received 15 Units (low dose) or 20 Units (high dose) of BOTOX into the adductor pollicis and flexor pollicis longus under EMG guidance (total BOTOX low dose =30 Units, total BOTOX high dose =40 Units), or placebo (see Table 30). The duration of follow-up in Study 4 and Study 5 was 12 weeks.
"The difference between using a cannula and a 'needle injection' technique is cannulas are a blunt tip needle that lets us place filler on a plane that allows it to last longer," explains Goodman. "They look better and preserve the 'untouched look' we're known for. Also, it's a more advanced technique that ensures the patient will not leave the office bruised."

Facelift: What you need to know A facelift aims to make the face look more youthful. The procedure can remove excess skin from the face and smooth wrinkles. However, it may not be suitable for everyone. Complications can occur, for example, infections, especially in people with existing health conditions. Relapse and scarring are also possible. Read now
Each patient has their own goals for treatment of muscle spasticity made in our clinic. These goals can include decreasing pain from muscle spasms. This can be done by reducing both how often and how intense the spasms are. It can also be done by increasing the range of motion of joints to allow improved function. Improvement of range of motion can help to:
The number of Botox varies from one area to another which has a direct effect on how much does Botox cost. For example, to remove crow’s feet, it requires at least 5 to 15 units per side while 10 to 30 units for the forehead lines. Therefore, each of the areas has a different volume of Botox necessary to correct the appearance which factors in the overall cost.
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
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).
So people told me I looked tired, overlooking the grape-size purple bruise smack dab in the center of my forehead. As one RealSelf reviewer wrote: “My head feels too tight, my eyebrow position has dropped enough to lose my nice pretty arch and my eyelids seem hooded. My eyes look smaller.” Now, if it works, looking a bit tired is a small price to pay for a few more days each month of migraine freedom and function. And bruises can be covered with makeup.
The cost of Botox injections varies widely, with most clinics in the United States charging between $9 and $20 per unit. The variation in cost can be influenced by a number of factors, including the location of the clinic or medspa, and the reputation and expertise of the injector. For example, board-certified plastic surgeons who specialize in administering Botox and dermal fillers are likely to charge more because they generally guarantee better results. That is not to say, however, that injectors charging $10 per unit aren’t capable of delivering excellent results as well, but there is far less risk of any complications arising when you choose an injector who has been board-certified. It is always the smartest, safest way to proceed with any cosmetic enhancement.
I would caution against shopping around for cheap Botox. There are practitioners than offer bargain prices that are not sustainable from a business standpoint. They may be diluting their Botox or injecting less units than advertised.  Also, some practitioners charge less per unit of Botox but inject significantly more Botox than is required to achieve the optimal outcome. For instance, 60 units of Botox at $10/unit is more expensive than 45 well placed units at $12/unit. 

Baby Botox can also be used as an upkeep strategy. "I really think of it as small maintenance doses of Botox over time instead of standard doses given at three- to six-month intervals," says Smith. "The other term that describes this well is 'tweakment' — subtle changes done over a longer period of time using lower doses of product at each treatment."
Postmarketing reports indicate that the effects of BOTOX® Cosmetic and all botulinum toxin products may spread from the area of injection to produce symptoms consistent with botulinum toxin effects. These may include asthenia, generalized muscle weakness, diplopia, ptosis, dysphagia, dysphonia, dysarthria, urinary incontinence and breathing difficulties. These symptoms have been reported hours to weeks after injection. Swallowing and breathing difficulties can be life threatening and there have been reports of death. The risk of symptoms is probably greatest in children treated for spasticity but symptoms can also occur in adults treated for spasticity and other conditions, particularly in those patients who have an underlying condition that would predispose them to these symptoms. In unapproved uses, including spasticity in children, and in approved indications, cases of spread of effect have been reported at doses comparable to those used to treat cervical dystonia and spasticity and at lower doses.

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.
Beware of Botox injections at a "Botox party" at someone's house. You need to be in a medical setting, where any side effects can be treated immediately. You may not see the final effects of the injections during the party anyway, as they usually take a few days. A Botox party isn't such a bad idea if it's held by a doctor in a medical setting, but even then there's a risk of the doctor's attention being divided between you and the other attendees.
The seven toxin types (A-G) have different tertiary structures and sequence differences.[35][36] While the different toxin types all target members of the SNARE family, different toxin types target different SNARE family members.[34] The A, B, and E serotypes cause human botulism, with the activities of types A and B enduring longest in vivo (from several weeks to months).[35]
Charges can vary from $8 to $20 a unit depending on where you are in the country and the level of dilution, meaning that the price may actually be higher than the quoted price if a clinic dilutes it out instead of preparing full-strength Botox. The cost of the procedure varies as it depends upon the total number of units injected and the number of sites treated.
As with any drug, Allergan is legally required to make known Botox's most severe potential side effects, and in 2009 the FDA required Botox to bear a black-box warning--the strongest type of warning label given to any drug--cautioning that there was evidence the drug had been linked to serious side effects. With Botox, this includes effects spreading from the injection site to other parts of the body, causing muscle weakness, double vision and drooping eyelids.
García Leiva specified that this treatment "is not a first-choice treatment for migraine sufferers, but it can only be applied in patients with chronic migraine who have tried several treatments with poor results, and who show peripheral sensitization of muscles. Recently, the Foods and Drugs Administration (USA) has approved botulinum toxin as a therapeutical drug for the treatment of chronic migraine.
BOTOX® treats the symptoms of severe underarm sweating when topical medicines do not work well enough in people 18 years and older. It is not known whether BOTOX® is safe or effective for severe sweating anywhere other than your armpits. BOTOX® treatments temporarily block the chemical signals from the nerves that stimulate the sweat glands, resulting in reduced sweating.
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