This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Anticholinergics cause all except? \nSelect and explain. \nA. Tachycardia, B. Mydriasis, C. Bronchoconstriction, D. Constipation', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Bronchoconstriction. Anticholinergic agents cause bronchodilatation. ACTIONS: CNS: In toxic/high doses: Maximal excitatory effect. Eye: Mydriasis - Paralysis of sphincter pupillae. Cycloplegia - Paralysis of accommodation. Increased intraocular pressure in people with shallow anterior chamber. It gives comfo & rest to eye by relieving spasm of iris sphincter & ciliary muscle. Prevents synechiae formation & demolishes already formed synechiae. Increases blood supply to anterior uvea. By relieving pressure on anterior ciliary aeries. CVS: Increased A-V conduction. GIT: Cause relaxation of LES. Renal: Urinary retention in older males with prostatic hyperophy. Secretions: Reduces salivary, lacrimal and gastric secretions.", 'role': 'assistant'}]