XEOMIN is a prescription medicine that is injected into muscles and used: " treat the abnormal head position and neck pain that happens with cervical dystonia (CD) in adults. " to treat abnormal spasm of the eyelids (blepharospasm) in adults who have had prior treatment with onabotulinumtoxinA (Botox®). 

HOW DOES XEOMIN WORK?
XEOMIN is injected into muscles to decrease their activity. XEOMIN blocks the release of a chemical messenger-acetylcholine-that conveys the signal from nerve terminals and causes muscle fibers to contract. Not all terminals are affected by botulinum toxin, so the muscles can still contract, just less forcefully. This allows the muscles to contract more normally.