By ALL means check with your doc before messing around with decreasing/increasing dosages or changing the times you take them. I've had some friends lately who have caused themselves problems by fiddling with their meds.

I know there are some meds that you can self-adjust, but I never dare guess which ones. A friend ended up in the hospital because she abruptly stopped taking klonopin. And another friend switched something between morning and night and it didn't go over well with another med he was taking; took a long time to get re-adjusted.