Imagine you are a student studying for your pharmacy technician certification exam. Your friend is quizzing you over drugs that affect the nervous system. As a pharmacy technician you may be asked by a customer how a drug works or why they are taking a particular medication. They may be taking many different medications and can’t remember why they take a certain one. Unit 4 DQ Question: Serotonin is a neurotransmitter involved in the control of mood. Based on this description, predict what types of health conditions Selective Serotonin Reuptake Inhibitors (SSRIs) could be used to treat.