<prompt> Anti-cholinesterases are ineffective against:Belladona poisoningCarbamate PoisoningPostoperative ileusCobra bite  <response>: 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, Alzheimers disease 