Drug Holiday

Hello: this is my first post. I am the DON for a 63 bed facility. I was wondering if other facilities do drug holidays for the residents? Is there any literature to support this practice? If any one does drug holidays, how often is the holiday and what medications should be excluded from the holiday (warfarin, digoxin, etc)? What steps did you take to get the drug holiday in place in your facility?
Thank you for any information.