Millions of Americans are frustrated with their urinary problems. More specifically, the need to urinate multiple times a day and night.

An overactive bladder (OAB) refers to a group of symptoms that cause a sudden need to urinate or the urge to urinate. OAB affects up to 40 percent of women and 30 percent of men in the United States.

The most common symptom is a sudden, uncontrolled need or urge to urinate.

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