The values for the geometric mean area under the plasma concentration-time curve over a dosing interval at the steady-state ( AUCss ) of quetiapine were 5,094 , 7,685 , and 13,237 ngh/mL , respectively , and for N-desalkyl quetiapine were 2,284 , 4,341 , and 7,216 ngh/mL , respectively .