Please help me to identify these pills that I have. They are small, round and white. They are blank on one side, and on the other side is the inprint that looks like: rx, and under those two letters are the numbers 773. Also, on the side with the inprint, there is a line imprint that splits the pill in half. That is as much as I can identify. I was told these are 1mg lorazepam/ativan pills. Please help! Thank you!