The ideal needle to use is a 30G or 31G, half-inch needle. Longer needles are problematic as they encourage deeper injections, which can increase the risk of muscle weakness, and most of the side effects such as neck pain stem from muscle weakness. Perseverative-free normal saline is the only diluent that should be used. There is a case study of a patient who died when onabotulinumtoxinA was mixed with a local anesthetic agent. The pivotal trial established an effective dose using 2 mL/100 units of onabotulinumtoxinA. A fact that is often overlooked is that the mean dose in the trial was 165 units. The patients all received 155 units with a fixed dose, fixed-site injection protocol, and an option of an additional 40 units to follow the pain. This resulted in a mean dose of 165 units, which is the standard that should be used to achieve the efficacy results reviewed above.
BOTOX for migraines is an innovative, FDA-approved procedure. BOTOX is a unique approach to migraine relief that is proving to be highly effective for many patients living with the condition. Rather than reducing the symptoms of an existing headache, BOTOX works to prevent future headaches, and helps avoid the continued use of powerful prescription pain medications.
Key secondary endpoints included Physician Global Assessment, finger flexors muscle tone, and thumb flexors tone at Week 6. The Physician Global Assessment evaluated the response to treatment in terms of how the patient was doing in his/her life using a scale from -4 = very marked worsening to +4 = very marked improvement. Study 1 results on the primary endpoint and the key secondary endpoints are shown in Table 26.
The only difference between the two procedures is that with Botox for migraines, they may do a few more shots in areas where the pain is experienced. Personally, I usually get between 30 and 40 shots, concentrated mostly on the right side of my head where the pain occurs, at the base of my skull, and on my neck and shoulders, where I tend to hold tension, as doing so can cause a migraine. Botox for migraines can have the same aesthetic effect that cosmetic Botox has, which kills two birds with one stone for people who may desire that effect. "We do it along wrinkle lines and keep it symmetrical," says Ravitz, which explains the erasing of lines and temporary plumping of wrinkles.
It is not known whether BOTOX® is safe or effective to treat increased stiffness in upper limb muscles other than those in the elbow, wrist, fingers, and thumb, or in lower limb muscles other than those in the ankle and toes. BOTOX® has not been shown to help people perform task-specific functions with upper limbs or increase movement in joints that are permanently fixed in position by stiff muscles. BOTOX® is not meant to replace existing physical therapy or other rehabilitation that may have been prescribed.