What is Merck-Medco?
Merck-Medco serves as the pharmacy benefits manager (PBM) for Medical Mutual of Ohio, and administers all prescription drug programs for Medical Mutual. Merck-Medco is the largest PBM in the nation with more than 53,000 retail pharmacies nationwide, including chain drug stores, discount stores and independent pharmacies. Merck-Medco operates its retail drug store prescription program under the name PAID Prescriptions, and its mail-order program under the name Merck-Medco Rx Services. Merck-Medco offers you the following services at participating pharmacies.