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. 2024 Mar 4;20:479–490. doi: 10.2147/NDT.S455183

Table 4.

Initial Dosage Recommendation of Olanzapine in Schizophrenic Patients Without or with Aripiprazole

Without Aripiprazole With Aripiprazole
Once a Day Once a Day
Body weight (kg) Dose (mg/kg/day) Probability to achieve the target concentrations (%) Body weight (kg) Dose (mg/kg/day) Probability to achieve the target concentrations (%)
(40–70) 0.6 86.7–89.4 (40–53) 0.4 93.5–94.7
[70–100] 0.5 89.0–91.8 [53–100] 0.3 93.5–97.3
Split evenly into two doses a day Split evenly into two doses a day
Body weight (kg) Dose (mg/kg/day) Probability to achieve the target concentrations (%) Body weight (kg) Dose (mg/kg/day) Probability to achieve the target concentrations (%)
(40–60) 0.6 97.4–97.7 [40–100] 0.4 99.5–99.9
[60–100] 0.5 97.6–99.2