In April, when we realized that wee difficult child's hideous behavior seemed to start when we increased his depakote and dropped it back down, it was day 10 after the decrease that was his first really great day, tho we saw daily improvements sooner than that.
Ironically, when we increased the dose originally, it was also day 10 that he really fell apart...
His Depakote level hovers around 60, which is "technically" too low, but raising it makes him crazy. We're letting behavior drive any further changes, not numbers on paper, cause obviously, he doesn't fit the mold.