I don't know where that information came from about Concerta not being compatible with people with depression. Our son does beautifully on Concerta and also takes Celexa for his depression and OCD. I've been at this seven years now and have never heard anything about ADHD meds being a problem with people with depression. If anything, starting medication can help alleviate depression brought on my all of the negativity surrounding ADHD symptoms. I know our son's outlook improved a whole lot when he first started ADHD medication.
I really wouldn't read much about ADHD medication online. You really want to get your information straight from the medical specialists overseeing treatment and from the pharmacist. I found there's a whole lot of garbage online about ADHD and its treatment. You can scare yourself silly with this garbage. Talk to the experts. Also join CHADD and subscribe to ADDitude magazine.
That's bizarre that the doctor wouldn't have asked about family history of mental illnesses. He should have had a thorough analysis by a trained specialist like a child psychiatrist. If a pediatrician handled things, get a second opinion with a specialist. I just can't see a specialist not asking about family history. That came up very early on in the long road to a diagnosis for our son. We saw multiple specialists.
Medication can make a tremendous difference, but it's not a cure-all, so make sure your son also gets seen by a behavioral specialist, too. Medication and therapy combined have the best track record in helping with ADHD. Don't let your experiences with medication cloud things. Medication for this condition is constantly evolving and those administering it are so much more skilled at it than they were years ago.