This study reviews the injection patterns (i.e., muscle distribution, dosing) of onabotulinumtoxinA for treatment of adult spasticity, as reported in published studies. Methods A systematic review ...

After receiving Botox injections, watch for muscle weakness or loss of strength, dizziness, or vision problems. These side effects can occur hours, days, or weeks after receiving Botox treatment.

5. Relax Your Muscles Injections tend to hurt more if your muscles are tensed, according to the Arthritis Foundation. If ...

An injection of BTX into the muscle blocks transmission of impulses from the nerve to the muscle causing local and temporary weakness of the target muscle. This process, called "chemodenervation," ...

were treated with injections of the toxin into the region of Riolan's muscle at the medial and lateral extremities of the upper lids. Thirty patients with hemifacial spasm, all of whom had ...