Pharmacies using Datarithm can now sell and buy surplus inventory on InStockRx, right from their Datarithm screen
Pharmacies using Datarithm can now sell and buy surplus inventory on InStockRx, right from their Datarithm screen.
How the Datarithm Liquidation Engine works: Datarithm flags dead stock, Rx Direct Solutions handles eligible manufacturer returns, and InStockRx sells the rest to pharmacies that need it.
InStockRx is pharmacies only: every pharmacy is license and DEA verified, there are no brokers, and every trade carries DSCSA transaction records.
Pharmacies have saved over $33 million versus NADAC on InStockRx, with 2,000+ pharmacies on the platform. Figures as of October 30, 2026.
InStockRx: Connecting Communities. Reducing Waste. Improving Access.
Datarithm's Liquidation Engine now lets independent pharmacies sell dead stock to other pharmacies, and buy from verified pharmacies, on InStockRx.
Dead stock is inventory that has not moved in four or more months and no longer qualifies for wholesaler return or store-to-store transfer. For many independents, the options left have been a manufacturer return with a long timeline, or reverse distribution, where surplus can sit up to three years before it turns into credit. The Liquidation Engine now gives each flagged item a clear next step:
Datarithm identifies dead stock and checks which recovery path it is eligible for.
Rx Direct Solutions handles manufacturer returns for eligible items.
InStockRx gives items that are not eligible, or not a good fit for a manufacturer return, a market with other pharmacies that need them.
"Every independent pharmacy has working capital sitting on a shelf, in medication that hasn't moved in months," said Jeremy Froehner, founder of InStockRx. "Datarithm already tells them which items those are. Now, from the same screen, they can sell them to another pharmacy that needs them, or buy what they need from a pharmacy they know is verified. That's cash back in the business, and less risk that good medication expires on a shelf before a patient can use it."
Know who you're trading with
InStockRx is pharmacies only. Every pharmacy's state license and DEA registration are verified before its first trade, and there are no brokers. InStockRx provides Drug Supply Chain Security Act (DSCSA) transaction records on every trade, kept seven years, a year longer than DSCSA's six.
Buy, not just sell
The integration works on both sides of the marketplace. Pharmacies can use it to source surplus inventory listed by other pharmacies. Pharmacies have saved over $33 million versus NADAC* since the marketplace opened. Today there are 2,000+ pharmacies on the platform.
InStockRx is free to join, with no fees to buy, and transfers between a member's own pharmacies carry no fee. Every member gets their own Account Manager, with a direct line and a response within one business day.
"Adding InStockRx provides a potentially faster path to sell when the manufacturer return timeline is long," said Dave Belinski, President of Datarithm.
Getting started
Pharmacies using Datarithm can learn more about the Liquidation Engine at www.datarithm.co. Pharmacies not yet on InStockRx can join free at www.instockrx.com.
*Savings versus NADAC reference pricing published by CMS at time of transaction, a public benchmark that does not reflect any pharmacy's negotiated wholesaler price.
InStockRx records support your pharmacy's DSCSA obligations. Your pharmacy keeps its own compliance responsibilities.
About InStockRx
InStockRx is a pharmacy-to-pharmacy marketplace where pharmacies sell surplus medication and source hard-to-find stock, with DSCSA transaction records on every trade. Every pharmacy's state license and DEA registration are verified before its first trade. InStockRx is free to join, with no fees to buy. A GS1 US Standard Solution Partner since November 2024, InStockRx keeps transaction records seven years, a year longer than DSCSA's six. InStockRx is building a world where every medication finds its patient. Learn more at www.instockrx.com.
About Datarithm
Datarithm is a leading provider of cloud-based inventory management software specifically engineered for independent, outpatient, and LTC pharmacies. By leveraging advanced algorithms and real-time data, Datarithm helps pharmacies reduce surplus inventory, improve liquidity, minimize stock-outs, and maximize profitability. Headquartered in Syracuse, NY, Datarithm remains committed to the success and sustainability of independent pharmacies nationwide.
Melissa Jostand, Chief Marketing Officer
InStockRx
813-213-4945
melissa@instockrx.com
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