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Lower risk Medical device recall · FDA · Published September 2, 2021

Elekta MOSAIQ Oncology System Drug Strength Recall: Order Changes May Revert

Elekta recalls MOSAIQ Oncology Information System software version 2.83 where drug strength settings may revert to original after ordering changes. Affected units run with First Data Bank (FDB) and have specific UDI/GTIN numbers.

🇺🇸 FDA recall #Z-2591-2021Medical deviceElekta ›
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Recalling firmElekta, Inc.100 Mathilda Pl, 5th Floor · Sunnyvale, CA 94086-6076
✎ GovInfoNow plain-language explainer

What happened, in plain English

Elekta is recalling a version of their MOSAIQ Oncology Information System software where drug strength settings can change during ordering but revert to original values. This could lead to incorrect drug dosing if the system reverts after a change. Read more at govinfonow.com/recall/61840-elekta-mosaiq-oncology-system-drug-strength-recall-order-changes-may.

Source Summary by GovInfoNow · govinfonow.com/recall/61840-elekta-mosaiq-oncology-system-drug-strength-recall-order-changes-may · Updated August 19, 2026 · FDA enforcement record: FDA #Z-2591-2021

Cite this page

“Elekta MOSAIQ Oncology System Drug Strength Recall: Order Changes May Revert.” GovInfoNow, updated August 19, 2026. https://govinfonow.com/recall/61840-elekta-mosaiq-oncology-system-drug-strength-recall-order-changes-may. Based on FDA recall #Z-2591-2021 (https://api.fda.gov/device/enforcement.json?search=recall_number:%22Z-2591-2021%22&limit=1).

Why it’s dangerous

The system allows changing drug strength during ordering but the saved setting reverts to the original value after the change. This means that if a healthcare provider adjusts the drug strength for a patient, the system might reset to the original value, potentially causing incorrect dosing.

Who’s affected

Healthcare providers using Elekta's MOSAIQ software with version 2.83 that runs with First Data Bank (FDB) are most at risk. Patients receiving treatment through this system could potentially receive incorrect drug dosing.

How to tell if you have this one

Check if your MOSAIQ software version is 2.83 and runs with First Data Bank (FDB). Affected units have UDI/GTIN number 0858164002367.

  • Brand
    Elekta
  • Category
    Medical device
Based on the official FDA remedy

What to do — step by step

  1. Check Software Version

    Verify your MOSAIQ software version is 2.83 and runs with First Data Bank (FDB).

Where it went and when

Where it was distributed

Distributed in 17 states, and outside the U.S.

Alaska: not listedAKMaine: not listedMEVermont: not listedVTNew Hampshire: yesNHWashington: yesWAIdaho: yesIDMontana: not listedMTNorth Dakota: not listedNDMinnesota: not listedMNIllinois: not listedILWisconsin: not listedWIMichigan: not listedMINew York: yesNYRhode Island: not listedRIMassachusetts: not listedMAOregon: not listedORNevada: yesNVWyoming: not listedWYSouth Dakota: yesSDIowa: not listedIAIndiana: not listedINOhio: yesOHPennsylvania: yesPANew Jersey: not listedNJConnecticut: not listedCTCalifornia: yesCAUtah: not listedUTColorado: yesCONebraska: not listedNEMissouri: yesMOKentucky: not listedKYWest Virginia: not listedWVVirginia: not listedVAMaryland: not listedMDDelaware: not listedDEArizona: not listedAZNew Mexico: yesNMKansas: not listedKSArkansas: not listedARTennessee: not listedTNNorth Carolina: yesNCSouth Carolina: not listedSCDistrict of Columbia: not listedDCOklahoma: yesOKLouisiana: yesLAMississippi: yesMSAlabama: not listedALGeorgia: not listedGAHawaii: not listedHITexas: not listedTXFlorida: yesFL

FDA distribution: “Distribution was made to CA, CO, FL, ID, LA, MO, MS, NC, NH, NM, NV, NY, OH, OK, PA, SD, and WA. There was no military/government distribution. Foreign distribution was made to Australia, Canada, and the United Kingdom.” States read from FDA’s own wording; “not listed” means the notice does not name it.

States: California, Colorado, Florida, Idaho, Louisiana, Mississippi, Missouri, Nevada, New Hampshire, New Mexico, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Dakota, Washington.

Recall timeline

FDA published this recall 34 days after the firm started it.

1. Firm started the recall: Sep 2, 202112. FDA classified it Class II: Sep 29, 202123. Published in FDA’s Enforcement Report: Oct 6, 202132021
  1. Firm started the recall
  2. FDA classified it Class II
  3. Published in FDA’s Enforcement Report

Dates from the agency record only; steps without a date are left out.

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Where this comes from

The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.

  • Official source: FDA Recall #Z-2591-2021 (September 2, 2021) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for Z-2591-2021 to see it in context.
  • Plain-language summary written by qwen3:4b on August 19, 2026, from the official record above. Not reviewed by a person — if it conflicts with the FDA notice, the notice is correct. Report an error on this page.
  • GovInfoNow is an independent service and is not a government agency. We republish official FDA recall data; we don’t issue, amend or administer recalls.
GovInfoNow is an independent guide. We are not FDA or any government agency. Always confirm details with the official recall.Data: CPSC · FDA · NHTSA · USDA