<prompt> True about barbiturates ?Have steep dose response curveHave analgesic actionAre enzyme inhibitorsAcidification of urine is done in poisoning  <response>: Ans. is ,a, i.e., Have steep dose response curveRef: Goodmen Gillmen 2,he p. 471Barbiturates depress all areas of CNS, but the reticular activating system is most sensitive.Barbiturates have steep dose response curve.Except For phenobarbitone in epiteliu andthiopentonein anaesthesia,barbituratesare used nowThe enzwe inducing propey- of jhnobarbitine can be utiliad to hasten clearance of congenital nonhemolytic jaundiceand kernicterus,There is no specific antidote for their pokoning 