Resolution approving Amendment No. 1 to the Group Purchasing Organization pharmaceutical Agreement between McKesson Corporation and the Department of Public Health (DPH), under Administrative Code, Chapter 21A.2, to increase the Agreement sum by $596,269,164 for a not to exceed amount of $977,652,155; extend the term by four years and five months from February 1, 2024, for a total term of February 1, 2020, through June 30, 2028; and to authorize DPH to enter into modifications of the Agreement that do not materially increase the City’s obligations or liabilities and are necessary to effectuate the purposes of the Agreement or this Resolution.