EXHIBIT 10.5 TAX RESPONSIBILITY ALLOCATION AGREEMENT (the "Agreement"), dated as of August 12, 2003, between Merck & Co., Inc., a New Jersey Corporation ("Distributing"), and Medco Health Solutions, Inc., a Delaware corporation ("Controlled" and...Tax Responsibility Allocation Agreement • March 26th, 2004 • Medco Health Solutions Inc • Retail-drug stores and proprietary stores • New Jersey
Exhibit 10.7 FORM OF TAX RESPONSIBILITY ALLOCATION AGREEMENT (the "Agreement"), dated as of [ ] __, 2003, between Merck & Co., Inc., a New Jersey Corporation ("Distributing"), and Medco Health Solutions, Inc., a Delaware corporation ("Controlled" and...Tax Responsibility Allocation Agreement • July 25th, 2003 • Medco Health Solutions Inc • Retail-drug stores and proprietary stores • New Jersey