Hello, I've been on Valium for a few months, before I was on Ativan, the one Valium I have a day helps, but I have two refills for Ativan at Walmart, I was wondering could I go and use one of the refills even though I'm no longer on it? Or when I changed medications did it void it or something or could I get in trouble? I was hoping to use the Ativan to help in emergencys, thank you