Elimination. Half-life: 3.3-3.5 hr (intranasal); 3 hr (IV, healthy patient); 9 hr (IV, severe renal impairment); 2-3 hr (PO); 2.8 hr (1.66 mcg dose; preservative-free nasalIf spray pump is not used for 2 week (DDAVP or Minirin) or 1 week (Stimate), reprime pump by pressing down on the pump once....