[b] These values represent the prospectively planned method for missing data imputation a nd statistical test. Sensitivity analyses indicated that the 95% confidence interval excluded the value of no difference between groups and the p -value was less than 0.05. These analyses included several alternative missing data imputation methods and non-parametric statistical tests.

Richard Clark, a plastic surgeon from Sacramento (CA), was the first to document a cosmetic use for botulinum toxin.[51] He treated forehead asymmetry caused by left sided forehead nerve paralysis that occurred during a cosmetic facelift. Since the injured nerve could possibly regenerate by 24 months, a two-year waiting period was necessary before definitive surgical treatment could be done. Clark realized that botulinum toxin, which had been previously used only for cross eyed babies and facial tics, could also be injected to smooth the wrinkles of the right forehead to match her paralyzed left. He received FDA approval for this cosmetic application of the toxin and successfully treated the person and published the case study in 1989.[51]
BOTOX, highly diluted botulinium toxin, works to prevent migraine by blocking the release of a chemical in muscle cells that transmits the signal to contract to muscle fibers. Research into using BOTOX to treat migraines began after patients receiving it for other conditions reported improvement in their migraine symptoms. In 2010, after years of research and collecting clinical data, the FDA approved BOTOX for treating chronic migraines.
Other adverse reactions that occurred more frequently in the BOTOX group compared to the placebo group at a frequency less th an 1% and potentially BOTOX related include: vertigo, dry eye, eyelid edema, dysphagia, eye infection, and jaw pain. Severe worsening of migraine requiring hospitalization occurred in approximately 1% of BOTOX treated patients in Study 1 and Study 2, usually within the first week after treatment, compared to 0.3% of placebo-treated patients.

That’s enough to generate buzz on the patient forums like RealSelf among those who have tried it: “My neck is killing me” wrote one user;  I’ve got “Stiffness, pain in the neck, headache and can’t look down” reported another. Like anything, results vary widely. “I have since felt nauseous and dizzy on and off every day, as well as have blurry vision.
As with with plastic surgery or any other cosmetic procedure, what you are paying for is an injector who has experience and a proven track record of beautiful results. If you're looking for a precise estimate of what it will cost to achieve your Botox goals, I encourage you to meet with a board-certified plastic surgeon or dermatologist for an initial consultation.
Of 1242 overactive bladder patients in placebo-controlled clinical studies of BOTOX, 41.4% (n=514) were 65 years of age or older, and 14.7% (n=182) were 75 years of age or older. Adverse reactions of UTI and urinary retention were more common in patients 65 years of age or older in both placebo and BOTOX groups compared to younger patients (see Table 18). Otherwise, there were no overall differences in the safety profile following BOTOX treatment between patients aged 65 years and older compared to youn ger patients in these studies.
I usually charge $12 a unit for botox. The number of units depends on the site. The "eleven" lines or glabellar area I usually use 20 units. Also I used 20-30 units for the forehead. In the crows feet I use about 15 units per side or 30 units total. To give a Botox brow lift I use 5 units total. Finally to give a patient a natural smile or soften the sad look of the mouth I use about 10 units. You can calculate the math to determine the cost depending on what you would like to get. Botox cost is going to vary by location as overhead will be different in different areas of the country. Maintaining a park avenue office is much more costly than an office in New Jersey so my price may be lower than someone in Manhattan. Someone in Bucks County Pennsylvania may have lower costs and thus lower prices still.

According to Ravitz, it's very effective among a large sampling of her patients and is usually very well tolerated. She says some of her patients find that it even eliminates the need for medication, which is a huge deal. However, she also says, "About 7 to 10 percent of my patients find that it’s not effective and they actually feel worse during that time." As with any medical procedure, everybody (and everyone's actual body) is different and will respond to treatment differently, and it's best to do a healthy amount of research and thoroughly talk to your doctor about your body and medical history before making a decision.
A migraine requires only two of the following headache features: a unilateral distribution (one-sided), pulsatile quality (throbbing), moderate or severe pain (more than 5 out of 10), and aggravation by physical activity (such as bending over). In addition, to diagnose migraine, only one of the following is required: nausea or vomiting or sensitivity to light and noise.
Food-borne botulism results, indirectly, from ingestion of food contaminated with Clostridium spores, where exposure to an anaerobic environment allows the spores to germinate, after which the bacteria can multiply and produce toxin.[citation needed] Critically, it is ingestion of toxin rather than spores or vegetative bacteria that causes botulism.[citation needed] Botulism is nevertheless known to be transmitted through canned foods not cooked correctly before canning or after can opening, and so is preventable.[citation needed] Infant botulism cases arise chiefly as a result of environmental exposure and are therefore more difficult to prevent.[citation needed] Infant botulism arising from consumption of honey can be prevented by eliminating honey from diets of children less than 12 months old.[71]
Postmarketing safety data from BOTOX and other approved botulinum toxins suggest that botulinum toxin effects may, in some cases, be observed beyond the site of local injection. The symptoms are consistent with the mechanism of action of botulinum toxin and 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 difficulti es can be life threatening and there have been reports of death related to spread of toxin effects. 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, and partic ularly 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, symptoms consistent with spread of toxin effect have been reported at do ses comparable to or lower than doses used to treat cervical dystonia and spasticity. Patients or caregivers should be advised to seek immediate medical care if swallowing, speech or respiratory disorders occur.

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.

In fertility studies of BOTOX (4, 8, or 16 Units/kg) in which either male or female rats were injected intramuscularly prior to mating and on the day of mating (3 doses, 2 weeks apart for males, 2 doses, 2 weeks apart for females) to untreated animals, reduced fertility was observed in males at the intermediate and high doses and in females at the high dose. The no -effect doses for reproductive toxicity (4 Units/kg in males, 8 Units/kg in females) are approximately equal to the maximum recommended human dose of 400 Units on a body weight basis (Units/kg).

There has not been a confirmed serious case of spread of toxin effect away from the injection site when BOTOX® has been used at the recommended dose to treat chronic migraine, severe underarm sweating, blepharospasm, strabismus, or when BOTOX® Cosmetic has been used at the recommended dose to treat frown lines, crow’s feet lines, and/or forehead lines.