I have always wondered this myself since the laws consering DUI in my state having gotten more strict over the last couple of years. I often drive while taking my medication because it doesn't really make me unfunctationable, but there have been times where I would have been worried to be pulled over in case my pupils were diluted, or I had slurred speech or something and they assumed I was drinking. I would love to hear if anyone knows of this. Or know of a place on the web to get the info for your state. Thanks.