Kalderos upgrades 340B Pay platform, giving covered entities more options Kalderos 340B Pay, a first-of-its-kind platform solution for Drug Discount Management, now gives providers the flexibility to use a rebate or discount model News provided by Share this article Share this article CHICAGO, Dec. 15, 2020 /PRNewswire/ -- Drug Discount Management company Kalderos today announced a significant upgrade to its 340B Pay solution that gives covered entities more choice in how they realize the benefits of the 340B program. Covered entities will now be able to choose whether to use the rebate model for their own pharmacies, or maintain their existing process of upfront discount and wholesaler chargeback.