Enzyme Immunoassay, Phenobarbital

Reports per year

Source: FDA adverse event reports by year received, 2001–2026. Reporting paused during the 2026 MAUDE-to-AEMS transition and has since resumed.

Recent recalls

• 2013-11-15TerminatedEquipment maintenance

  VITROS Chemistry Products PHBR Slides packaged as 90 slides/pack catalog number 8221384 VITROS PHBR Slides quantitatively measure phenobarbital (PHBR) concentration in serum and plasma using VITROS 250/350/950/5,1 FS and 4600 Chemistry Systems and the VITROS 5600 Integrated System.

  Ortho Clinical Diagnostics is recalling Slide Dispense cartridges used with some VITROS Chemistry Product Slides due to slide dispense issues.

• 2013-11-07TerminatedNonconforming Material/Component

  Emit 2000 Phenobarbital Assay and Syva Emit 2000 Phenobarbital Assay

  Imprecision with certain lots

• 2013-04-19TerminatedUnknown/Undetermined by firm

  VITROS Chemistry Products PHBR (Phenobarbital) Slides, REF 822 1384. For the quantitative measure of phenobarbital (PHBR) concentration in serum and plasma.

  Ortho Clinical Diagnostics (OCD) received customer complaints of intermittent imprecision, outliers, or shifts in accuracy and control fluid values outside of expected intervals when using VITROS Chemistry Products PHBR Slides. OCD's investigation confirmed that positively biased values for patient samples could be obtained that may not be detected by quality control fluids.

• 2013-04-15TerminatedNonconforming Material/Component

  Clinical Chemistry Phenobarbital, list number 1E08

  Abbott Diagnostics is recalling Clinical Chemistry Phenobarbital reagent lots 62299UN12 and 85773UN12 due to imprecision issues which increase with the age of the reagent lot. The imprecision of the Phenobarbital assay is d 7% Total CV%; however, internal testing confirmed CVs up to approximately 12% for in-date reagent lots over five months old. Although lot 52803UN12 is now expired, it exhibit

• 2013-01-10TerminatedNonconforming Material/Component

  Emit(R) 2000 Phenobarbital Assay (OSR4D229) and Syva(R) Emit(R) Phenobarbital Assay (4D019UL). Homogeneous enzyme immunoassay intended for use in the quantitative analysis of Phenobarbital in human serum or plasma.

  Firm has confirmed higher imprecision with the recalled lots on Beckman Coulter AU(R) Systems and the Syva(R) Emit(R) 2000 Phenobarbital (4D019UL) lots E1, E2, and E3 as an application if the AU(R) System is used, the issue may be experienced. Firm has found that within-run imprecision of the recalled lots frequency of outliers that differ from the expected value by 20%. This is an expansion of

• 2012-10-10TerminatedNonconforming Material/Component

  Emit(R) 2000 Phenobarbital Assay (OSR4D229) and Syva(R) Emit(R) Phenobarbital Assay (4D019UL) Product Usage: Enzyme n Immunoassay, Phenobarbital

  Firm has confirmed highter imprecision with the recalled lots on Beckman Coulter AU(R) Systems. Also, if the Syva(R) Emit(R) 2000 Phenobartbital Assay (4D019UL) lots D4, D5, D6, and/or D7 as an application on AU(R) Systems is used, the issue may be experienced. Firm has found that within-run imprecison of the recalled lots when run on an AU(R) System may be higher that what would normally be obs

• 2012-03-06TerminatedNonconforming Material/Component

  Synchron Phenobarbital (PHE) Drug Calibrator 1, P/N 469600, Classification Product Code: KLT. Subsequent Product Codes: DIP, KLS, LCD, LCQ, LCR, LFN. The Beckman Coulter SYNCHRON Systems DRUG CALIBRATOR 1, when used in conjunction with SYNCHRON reagents, is intended for use on the SYNCHRON Systems for the calibration of Carbamazepine, Phenobarbital, Phenytoin, Theophylline, and Valproic Acid.

  The recall was initiated because Beckman Coulter has confirmed reports of variability in results with the lots of Phenobarbital (PHE) reagent and calibrator.

• 2012-02-28TerminatedNonconforming Material/Component

  VITROS Chemistry Products PHBR Slides, REF 822 1384 --- COMMON/USUAL NAME: VITROS PHBR (Phenobarbital) Slides --- Ortho-Clinical Diagnostics, Inc. Rochester, NY --- Ortho-Clinical Diagnostics High Wycombe, UK --- This is an in vitro diagnostic. For in vitro diagnostic use only. VITROS Chemistry Products PHBR Slides quantitatively measure Phenobarbital (PHBR) concentration in serum and plasma using VITROS 250/350/950 and 5,1 FS Chemistry Systems and the VITROS 5600 Integrated System.

  Ortho Clinical Diagnostics (OCD) received customer complaints of intermittent imprecision, outliers, or shifts in control fluid values when using various lots of VITROS Chemistry Products PHBR Slides (Phenobarbital) from Coating 0053.

• 2007-01-09TerminatedOther

  Phenobarbital- Reagent-Clinical Chemistry--List number: 1E08-20-Abbott Diagnostics Division

  Erratic elevated results and or the inability to calibrate due to imprecision.