<unk>  is a neurotoxic protein that is FDA approved for the treatment of cervical dystonia, glabellar lines. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include muscular weakness, dysphagia, dry mouth, injection site discomfort, fatigue, headache, neck pain, musculoskeletal pain, dysphonia, injection site pain, and eye disorders, nasopharyngitis, injection site reaction, upper respiratory tract infection, eyelid edema, eyelid ptosis, sinusitis and nausea.
Botulinum toxin
Botulinum antitoxin
IncobotulinumtoxinA
Rimabotulinumtoxinb
Rubratoxin
Heteropodatoxin
Neurotoxin
Thiotepa