If you're having effects already that's actually a really good sign---for me I lost about half the voices overnight and the rest got quieter---some people it can take weeks or months to work or for some people actually not work at all. Sleepy is not surprising a lot of them are sedative and best taken before you go to bed...not sure about the blurred vision/colors thing---for me colors were brighter when I was psychotic....if it keeps up I would for sure call the pdoc about the blurriness...