Final answer:
Antispasmodics, also known as antimuscarinics or anticholinergics, are the mainstay of treatment for Overactive Bladder (OAB), as they help to reduce bladder muscle contractions and alleviate symptoms of urgency and incontinence.
Step-by-step explanation:
The mainstay of treatment for Overactive Bladder (OAB) is the drug class known as antispasmodics, which can also be referred to as antimuscarinics or anticholinergics. These drugs work by blocking the action of acetylcholine, a neurotransmitter, which in turn reduces involuntary muscle contractions in the bladder wall that lead to the sensation of urgency that characterizes OAB.
Examples of antispasmodic medications used for OAB include oxybutynin, tolterodine, solifenacin, and fesoterodine. These medications help to relax the bladder, thereby alleviating symptoms of urgency, frequency, and incontinence. It is important for patients to follow their healthcare provider's instructions when using these medications due to potential side effects.