Oxybutynin - Pharmacy Freak

Mechanism of Action of Anticholinergic Drugs

April 10, 2026October 14, 2025 Pharmacy Freak Editorial Team Harsh Singh Rajput

Introduction Anticholinergic drugs, also known as parasympatholytic agents, inhibit the actions of the neurotransmitter acetylcholine (ACh) at muscarinic receptors in the central and peripheral nervous systems. Mechanism of Action of Anticholinergic Drugs involves competitive antagonism of acetylcholine at muscarinic (M1–M5) receptor sites, thereby reducing parasympathetic activity. These drugs are used to treat disorders such as … Read more

Mechanism of Action of Oxybutynin

April 10, 2026September 20, 2025 Pharmacy Freak Editorial Team Harsh Singh Rajput

Introduction Oxybutynin is an antimuscarinic agent used primarily in the treatment of overactive bladder (OAB) and urinary incontinence. It reduces urinary urgency and frequency by inhibiting involuntary bladder contractions. Its dual mechanism—anticholinergic and direct smooth muscle relaxant properties—makes it effective for bladder control with additional benefits in neurogenic bladder conditions. Mechanism of Action (Step-wise) 1. … Read more