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A flow chart showing prescribing transactions. The chart begins with a PDA with a medication list and safety alerts. From the PDA, the prescription can flow through two systems. The first system is RxHub. Before getting to RxHub, arrows pass "NCPDP script" and a list that reads:
- Medical history
From RxHub, bidirectional arrows flow to Caremark, Express Scripts, Medco, and Wellpt.
The second system is SureScripts and others. Before getting to SureScripts and others, arrows pass a list that reads:
From SureScripts and others bidirectional arrows flow to Retail Pharmacy.
Source: Rand, Douglas S. Bell, 9/26/2007.
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