Mark your calendars for #TakeBackDay on April 27! Dentists and their patients are encouraged to return expired or unwanted prescriptions to various collection sites across the country. To find a site near you, visit https://t.co/nRHuYxK9Bc. https://t.co/oOhm0YrOkm https://t.co/9XQp4EM26q from http://twitter.com/AmerDentalAssn