Jose has a psychological disorder, and his doctor has prescribed a drug that affects both the levels of norepinephrine and serotonin in jose's nervous system. based on this information, it is most likely that jose is being treated for

Jose is likely being treated for depression.
Norepinephrine is a chemical which is tasked with making our bodies and brain do a particular action and not be passive. Serotonin is also known as the happy hormone which is responsible for positive feelings we experience. So if Jose was prescribed with a drug which will affect these levels, we can assume he is suffering from depression as people who are have low levels of both of these hormones.