2-Week Stabilization Phase: In the 2-week stabilization phase, participants will undergo baseline symptom, medical, safety, and neurocognitive assessments. The participants will undergo a physical examination; an EKG; and laboratory tests of major organ functions (i.e., CBC, liver function tests, electrolytes, glucose, BUN/Creatinine, Urinanalysis (UA), and thyroid functions). A baseline antipsychotic level will be collected. All women will have a pregnancy test.