Many times, effects on spasticity are longer lasting. It is not clear if this is due to breaking down patterned movements (many muscles contracting together rather than singly) or from allowing weak muscles to get stronger over time (that were overpowered before by more spastic muscles pulling against them). It is vital to have close follow-up after the injections to figure out the best course of treatment.
The potency Units of BOTOX® Cosmetic 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® Cosmetic cannot be compared to nor converted into units of any other botulinum toxin products assessed with any other specific assay method.
In addition to glabellar lines, Botox is used to eradicate crow’s feet, frown lines, and lines and furrows in the forehead. Whereas treating crow's feet and forehead lines with Botox was for many years an off-label use, the toxin has since received FDA approval for both uses. Botox is also approved to treat a variety of medical conditions, including ocular muscle spasms, problems with eye coordination, severe armpit perspiration, migraine headaches, overactive bladder, urinary incontinence related to nerve damage from conditions such as multiple sclerosis and spine injury. Botox is being studied to determine if it might be useful in treating conditions such as knee and hip osteoarthritis, temporomandibular joint disorder (TMJ) and benign prostatic hyperplasia (BPH).
Do not receive BOTOX® Cosmetic if you: are allergic to any of the ingredients in BOTOX® Cosmetic (see Medication Guide for ingredients); had an allergic reaction to any other botulinum toxin product such as Myobloc® (rimabotulinumtoxinB), Dysport® (abobotulinumtoxinA), or Xeomin® (incobotulinumtoxinA); have a skin infection at the planned injection site.