You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Mechanism of action of Oxybutynin? and explain in detail?
Ans. (b) AnticholinergicRef. KDT 6th ed. /107; Katzung Pharma 10th ed. Ch 8 MOA oxybutynin - cholinergic-muscarinic receptor antagonist* Oxybutynin is a selective M3 receptor blocker, used to relieve bladder spasm after urologic surgery, eg, prostatectomy. It is also used to relieve urinary and bladder difficulties, including frequent urination and inability to control urination, by decreasing muscle spasms of the bladder.* It competitively antagonizes the M3 subtypes of the muscarinic acetylcholine receptor.* M3 receptor blockers: (Mn: SOFT blaDar)# Solifenacin, Oxybutynin, Flavoxate, Tolterodine and Darifenacin