Hello Kathleen,
There is some information here about the medicines your son is taking. Perhaps there is something here that will answer your questions.
Here you can read an article that gives you the basics of ADHD medications including Strattera. Here is a link to ADHD and how it affects the child and what can be expected.
This link will tell you about treatments available.
I hope this information helps. Remember these online resources are good for helping you to ask all the right questions of your family doctor, but they should never be considered replacements for a doctor's advice.
Take care and stay in touch. Let us know how you and your son are doing!Vicki M