Anti-cholinesterases are ineffective against:: (A) Belladona poisoning, (B) Carbamate Poisoning, (C) Postoperative ileus, (D) Cobra bite
Answer is B. Ref:KD Tripathi pharmacology 7th edition (page.no: 110,105) Carbamate is irreversible anticholinesterase. so, anticholinesterases are ineffective against carbamate poisoning. Uses of anticholinesterases - Miotic, Myasthenia gravis, Postoperative paralytic ileus, Cobra bite, Belladonna poisoning, Alzheimer's disease