Olanzapine 2.5 mg lowest effective dose
Quetiapine can be tapered down below 50 mg,
Indications are different for both Medications on this dose,
If sleep problem is the main symptom, Quetiapine should be chosen
If there are psychotic symptoms such as delusion, hallucination in improving phase , Olanzapine in this lowest dose is preferred for maintenance of improvement
For vigilance of side effect, weight, BMI,
sugar,
lipid profile,ECG should be monitored in at least 3 months for both Medications