Ortho-Clinical Diagnostics VITROS Chemistry Products PHYT (Phenytoin) Slides, REF/Product Code 829 8671, IVD. For in vitro diagnostic use only. VITROS Chemistry Products PHYT Slides quantitatively measure phenytoin (PHYT) concentration in serum and plasma using VITROS 250/350/950/5,1 FS and 4600 Chemistry Systems and the VITROS 5600 Integrated System. Recall
Class II: A situation in which use of, or exposure to, a violative product may cause temporary or medically reversible adverse health consequences or where the probability of serious adverse health consequences is remote
Class II recall indicates potential for temporary health effects.
This AI-generated summary is provided for general informational purposes only and is derived from publicly available recall notices. It supplements but does not replace official agency classifications or safety instructions.
Check Your Product
According to the U.S. Food and Drug Administration (FDA)
Product
VITROS Chemistry Products PHYT (Phenytoin) Slides, REF/Product Code 829 8671, IVD. For in vitro diagnostic use only. VITROS Chemistry Products PHYT Slides quantitatively measure phenytoin (PHYT) concentration in serum and plasma using VITROS 250/350/950/5,1 FS and 4600 Chemistry Systems and the VITROS 5600 Integrated System.
Brand
Ortho-Clinical Diagnostics
Lot Codes / Batch Numbers
Lot Number 2613-0150-4913, exp. 15-Nov-2014
Products Sold
Lot Number 2613-0150-4913, exp. 15-Nov-2014
Ortho-Clinical Diagnostics is recalling VITROS Chemistry Products PHYT (Phenytoin) Slides, REF/Product Code 829 8671, IVD. For in vitro d due to Ortho Clinical Diagnostics identified a potential for biased results to be generated when using VITROS PHYT Slides, Lot 2613-0150-4913. Some positive. This is a Class I recall, indicating a high risk of serious health consequences or death. Based on FDA medical device enforcement report.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
Ortho Clinical Diagnostics identified a potential for biased results to be generated when using VITROS PHYT Slides, Lot 2613-0150-4913. Some positively biased results were identified during testing of a different VITROS PHYT Slide lot; the affected slides were not released for distribution. Since Lot 2613-0150-4913 was manufactured in the same event, there is the potential for slides from this lot to also be affected.
Recommended Action
Per FDA guidance
Healthcare providers and patients should stop using the device and contact the manufacturer for further instructions. Report problems to FDA MedWatch.
Verify this information on the official source
For complete details and official instructions, check the U.S. Food and Drug Administration (FDA) directly.
View official FDA recall noticePage updated: Jan 10, 2026