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Understanding Bladder Control Medications (cont.)

Botox Injection

Botox (onabotulinumtoxinA) injection has recently been approved by the Food and Drug Administration (FDA) for the treatment of overactive bladder (OAB) for patients who have failed to respond to standard therapy with anticholinergic medications.

Overactive bladder is a type of urinary incontinence caused by overactivity of the muscles in the bladder, causing frequent squeezing of the bladder and, thus, frequent urge to urinate. Botox can be injected into the bladder directly through a cystoscope (catheter with a camera going into the bladder via the urethra).

Common side effects of Botox injection may include incomplete emptying, urinary tract infection, and painful urination.

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Medically reviewed by Michael Wolff, MD; American Board of Urology


United States. Food and Drug Administration. "FDA Approves Botox to Treat Overactive Bladder." Jan. 18, 2013. <>.

Medically Reviewed by a Doctor on 2/3/2015
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