Oxybutynin
"I did have dry eyes for a couple of days but using the eye drops because I have always had dry eyes helps a lot.  I am so happy to not be running to the bathroom every ten minutes is a blessing.  Some days I was not able to make it home, always had to stop.  So it works for me.  We must realize that each of us will not experience the same thing.  What effects one person may not effect the other."