How long does it take for strattera to work?

Hi,
It's been a week now-I think you should start feeling better soon. What dosage did your MD start you on? Certainly within the next two weeks you should experience better concentration, less jittery. This may be a very subtle feeing at first. Hope this med is helpful for you. It's been wonderful for me, diagnosed as an adult with ADD. Best of luck to you.
4N Substances

Are you taking another drug in combination to the strattera? It could take 3 days to a month. It just depends on your body.