<prompt> True statement about first order kinetics isA constant amount of a drug is eliminated in unit timeThe half-life increases with an increase in doseThe rate of elimination is constantThe rate of elimination is proportional to the plasma concentration  <response>: Ans. D The rate of elimination is proportional to the plasma concentration Ref: KDT 8the p38Drugs may follow zero order or first order kinetics. It depends on the following formula:Rate of Elimination a PlasmaConcentrationorder Thus, if a drug follows zero order kinetics, PlasmaConcentration0 is equal to one, in other words rate of elimination is independent of plasma concentration or rate of elimination is constant. From the above formula, rate of elimination is proportional to plasma concentration for the drugs following first order kinetics. 