What to expect from medication

My husband was recently diagnosed with ADHD in his late 30s, and has very gradually started to take medication. He started with half dose wellbutrin, now is going to whole dose wellbutrin, and in a month will start something else if all is well. I'm wondering what your experiences with medication have been in the early stages. Stress is so high at home that we urgently need some significant change, but I know better than to think that medication would magically solve everything. So I'd really like to temper my expectations. What were positive changes? What did you still need to work on?