Cholinomimetics are useful in all of the following conditions except:: (A) Glaucoma, (B) Myasthenia gravis, (C) Post operative atony of bladder, (D) Partial heart block
Answer is D. Ans. (D) Partial heart block(Ref: KDT 8th/e p119/122)Cholinergic drugs decrease the conduction from atrium to ventricle, thus should be avoided in partial heart blockCholinergic drugs like pilocarpine and physostigmine are used in angle closure glaucomaNeostigmine (acetylcholineesterase inhibitor, a cholinergic drug) is used for treatment of myasthenia gravisNeostigmine is also used for post operative paralytic ileus and post operative urinary retention.