<prompt> The plasma half life of aspirin:Is independent of doseIs longer for anti-inflammatory doses compared to that for analgesic doseIs shoer for anti-inflammatory doses compared to that for analgesic doseCan be increased by alkalinizing the urine  <response>: Aspirin and other salicylates show saturation kinetics zero order and thus, their half life is not constant. Clearance at high doses anti-inflamatory is lesser than at low analgesic doses. Thus t12 is more for anti-inflammatory dose than for analgesic dose. 