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Uploaded byDr Pralhad Patki
Anticholinergic drugs
Anticholinergic drugs act as competitive antagonists at muscarinic receptors. They block the effects of the neurotransmitter acetylcholine (Ach) and thus reduce parasympathetic nervous system activity. Key points: - Atropine and scopolamine are examples of naturally occurring anticholinergic drugs. Synthetic muscarinic antagonists include benztropine, hyoscyamine, and oxybutynin. - They have therapeutic effects in the eyes (mydriasis, cycloplegia), gastrointestinal tract (reducing motility), respiratory tract (reducing secretions), and central nervous system (treating extrapyramidal side effects). - Potential adverse effects include dry
