Merck-Medco LifeWise Select National Network Participating Chains* A Giant Markets A & P Giant Pharmacy R Acme Good Neighbor PlusCare Allscripts Healthcare Solutions Pharmacies Raleys Arbor H Arrow Aurora Pharmacy Food & Pharmacy Rite Aid Hannaford Food & Drug Riverside Pharmacy B Happy Harry's Discount Drug Rosauers Pharmacy S Bartell Drug Company Hart Drug Store Basha’s HEB Pharmacy Safeway Bel Air Hi-School Pharmacy Sav-A-Center Bi-Lo Pharmacy Pharmacy Bi-Mart Corporation Horizon Pharmacies Schnuck Markets Big B Hy-Vee Pharmacies Seaway Big Bear Shaw's Brooks Pharmacy K Shop n Save Food & Drug Brooks-Maxi Drug Shop-Rite Brookshire Kmart ShopKo Stores Kerr Drug Smiths Food & Drug King Sooper Snyder C Kinney Drugs Star Pharmacy Stop & Shop Pharmacy Carrs Super 1 City Market L Super D Cost Cutters Super Fresh Pharmacies LaFeria Pharmacy Super G Pharmacy Cub Leader Drug Stores CVS Longs T

D M Target Thrifty Jr. Dillon Major Value Pharmacy Network Thrifty White Drug Discount Drug Mart Marc's Tom Thumb Domincks Marsh Drugs TOP Food & Drug Drug Emporium Mays Drug Tops Markets Drug Fair Medic Drug Drug Warehouse Medicap Pharmacy U Drugs for Less Pharmacy United Pharmacy E USA Drug N V Eckerd Drug Stores NCS HealthCare EPIC Pharmacies Neighborcare Pharmacy VIX Pharmacy F P W Fagen Pharmacy P & C Food Markets Pamida Pharmacy Walgreen’s Familymeds Pharmacy Pharmacy Wal*Mart Stores Farm Fresh Pharmacies Waldbaums Supermarket Pay Less Supermarkets Food Markets Food Emporium Phar-Mor Weis Pharmacy PharMerica White Drug Fred’s Price Chopper Pharmacy Winn-Dixie Frys Food & Drug ProCare Pharmacies Furrs Pharmacy Super Markets

G Q

* with 25 or more stores September 5, 2001