Simplify the following text for a Grade 10 native English-speaking person.
Original: When the manic behaviors have gone , long-term treatment then focuses on prophylactic treatment to try to stabilize the patient 's mood , typically through a combination of pharmacotherapy and psychotherapy .
Simplified: When the symptoms of mania have gone , long-term treatment then focuses on prophylactic treatment to try to stabilize the patient 's mood . Very often , this is done using a combination of drugs and psychotherapy .