Cardinal Health will be marketing a "talking pill bottle" designed to prevent prescription drug errors. The novel sounding idea was developed by MedivoxRx, which FierceHealthcare reported on several months ago. Doctors and pharmacists will able to record messages for patients who might need specialized instructions, particularly those who they think might be easily confused by labeling. "Rex: The Talking Prescription Bottle System" will now compete with "Talking Rx," a rival product sold online by CVS and Walgreens. Story