My son is in a psychiatric ward of a hospital and is on the following meds:
20 mg of olanzapine
600 mg of quetiapine ER
900 mg of lithium ER.
The olanzapine + quetiapine combination is a bit more than I’ve ever seen him dosed with.
He had gone off his meds and I’ve heard they don’t work as well when they are restarted, so maybe that’s why the high dosage.
This Antipsychotic Dose Calculator puts it at 900 mg of quetiapine, which is 100 mg higher than the maximum dose.