Every month I seem to get a different looking pill when I fill my Depakote. This month the pills are blue oval-shaped and have M945 imprinted on them. I cannot find this pill an the site at all, I am afraid to take it and my pharmacy refuses to switch back to the old pills. Is this pill actually Depakote 500mg DR Tablets, says the manufacturer is Mylan but I cannot find them anywhere and am afraid if I take them it will have an adverse effect on my health. Someone PLEASE answer this.