Open Your Eyes Achievement/Trophy
Once you grab the piece from the Bathroom on the second floor of the main house and escape jack.. again.. take it to the pillar in the room directly across from where you entered the main hall area of the house and align it so it makes a hawk. Now follow this path and you will come to a side room which has a batch of psychostimulants on a table. Pick them up and you use them and you will get the achievement/trophy.
Here is a video guide to show you where the room is.