Abstract
The use of intra-detrusor onabotulinumtoxinA (Botox(®)) in patients with myasthenia gravis has not been reported, and little evidence exists to substantiate a complete contraindication of Botox use in this population. Here, we present two cases of comorbid overactive bladder (OAB) and myasthenia gravis successfully treated with intra-detrusor Botox.