It's also not approved by the U.S. Food and Drug Administration (FDA) for depression, not that that stops doctors from prescribing it that way. Such off-label use of Botox, like that of any FDA-approved drug, is legal in the U.S. That's because once a drug has been approved by the FDA for a condition, licensed physicians are legally allowed to prescribe it for any medical issue they think it could benefit, regardless of whether it's been proved to work for that condition.
Serious and/or immediate hypersensitivity reactions have been reported. These reactions include anaphylaxis, serum sickness, urticaria, soft tissue edema, and dyspnea. If such a reaction occurs, further injection of BOTOX should be discontinued and appropriate medical therapy immediately instituted. One fatal case of anaphylaxis has been reported in which lidocaine was us ed as the diluent, and consequently the causal agent cannot be reliably determined.
Botox injections use onaboutlinumtoxin A, also known as the botulinum toxin, injected in small amounts to certain points in the head to treat migraine headaches, tension headaches, and chronic daily headaches. This treatment has been shown to be most effective for headaches that are located in the forehead and neck. Botox has also been used to treat the following conditions: