<prompt> Hemodialysis is useful in all of the following except ?Barbiturate poisoningMethanol poisoningSalicylate poisoningDigoxin poisoning  <response>: Ans. is d i.e., Digoxin poisoning o Dialysis in not effective in amphetamines, verapamil, organophosphates, opioids, imipramine, digitalis, diazepam. 