BOTOX blocks neuromuscular transmission by binding to acceptor sites on motor or sympathetic nerve terminals, entering the nerve terminals, and inhibiting the release of acetylcholine. This inhibition occurs as the neurotoxin cleaves SNAP -25, a protein integral to the successful docking and release of acetylcholine from vesicles situated within nerve endings. When injected intramuscularly at therapeutic doses, BOTOX produces partial chemical denervation of the muscle resulting in a localized reduction in muscle act ivity. In addition, the muscle may atrophy, axonal sprouting may occur, and extrajunctional acetylcholine receptors may develop. There is evidence that reinnervation of the muscle may occur, thus slowly reversing muscle denervation produced by BOTOX.
So what exactly are you putting into your face? John Paul Tutela, MD, a board certified plastic surgeon, explains, “Botox is a cosmetic injectable neurotoxin that is a very diluted form of Botulinum Toxin, which is found in the bacteria Clostridium botulinum. In this diluted format, it is used to relax your muscles—typically in your forehead, in between your eyebrows, and around your eyes.” The idea is that if you temporarily block local nerve impulses to specific muscles within your face, you won’t make certain facial expressions, so you won’t form the wrinkles that come with them, explains dermatologist Tsippora Shainhouse, MD, FAAD. These are the 7 signs you’re ready for Botox? (And 6 signs you aren’t.)
As of 2013, botulinum toxin injections are the most common cosmetic operation, with 6.3 million procedures in the United States, according to the American Society of Plastic Surgeons. Qualifications for Botox injectors vary by county, state and country. Botox cosmetic providers include dermatologists, plastic surgeons, aesthetic spa physicians, dentists, nurse practitioners, nurses and physician assistants.
Individuals with peripheral motor neuropathic diseases, amyotrophic lateral sclerosis (ALS), or neuromuscular junction disorders (eg, myasthenia gravis or Lambert-Eaton syndrome) should be monitored when given botulinum toxin. Patients with known or unrecognized neuromuscular disorders or neuromuscular junction disorders may be at increased risk of clinically significant effects including generalized muscle weakness, diplopia, ptosis, dysphonia, dysarthria, severe dysphagia, and respiratory compromise from therapeutic doses of BOTOX® (see Warnings and Precautions).
Botox is an injectable drug made from a toxic bacterium called Clostridium botulinum. When you eat the toxin produced by this bacterium, it causes a life-threatening form of food poisoning, known as botulism. But when you inject it into your body, it causes different symptoms. It blocks certain chemical signals from your nerves, causing temporary paralysis of your muscles.
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.
With depression, Rosenthal and Finzi think it may relate to what's known as the facial-feedback hypothesis, a theory stemming from research by Charles Darwin and further explored by the American philosopher and psychologist William James. The theory posits that people's facial expressions can influence their mood. Lift your face into a smile and it may just cheer you up; if you can't frown or furrow your brow in worry, perhaps you won't feel so anxious or sad.
BOTOX may be an effective treatment for those who suffer from chronic migraines. Many patients have struggled to find a treatment that truly provides relief from this debilitating condition. While there are migraine medications and a host of natural remedies, for many people, none of these methods bring real relief. BOTOX may be the option that brings the relief from pain that patients have been seeking for so long.
Tell your doctor if you have 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 by injection; take muscle relaxants; take an allergy or cold medicine; take a sleep medicine; take aspirin-like products or blood thinners.