Express Scripts is a pharmacy benefits manager that paid Walgreen to fill prescriptions. Their contracted ended in December after the companies failed to agree on terms for a new deal.
Walgreen had managed about 20 percent of Express Scripts' prescription volume before the contract ended. Express Scripts says it is keeping the vast majority of that business, and its clients are not upset with the split.
Even so, Express Scripts CEO George Paz says his company is always open to more negotiations with Walgreen, but a new deal has to be on terms that are best for his company.
