Abbott Diagnostic International, Ltd. 30 Bo Cruce Davila IMx Theophylline Reagent Pack (List 1A81-20) In Vitro test. This reagent system is composed of one bottle of Theophylline Pretreatment Solution, one bottle of Theophylline Antiserum (Mouse Monoclonal) and one bottle of Theophylline Fluorescein Tracer. Recall
Check Your Product
According to the U.S. Food and Drug Administration (FDA)
Product
IMx Theophylline Reagent Pack (List 1A81-20) In Vitro test. This reagent system is composed of one bottle of Theophylline Pretreatment Solution, one bottle of Theophylline Antiserum (Mouse Monoclonal) and one bottle of Theophylline Fluorescein Tracer.
Brand
Abbott Diagnostic International, Ltd. 30 Bo Cruce Davila
Lot Codes / Batch Numbers
Lot #41610Q100, Expiration date 04/25/2008
Products Sold
Lot #41610Q100; Expiration date 04/25/2008
Abbott Diagnostic International, Ltd. 30 Bo Cruce Davila is recalling IMx Theophylline Reagent Pack (List 1A81-20) In Vitro test. This reagent system is composed of one b due to A decrease in mP values (calibration curve Net Polarization value) has been observed with this reagent lot at all calibrator levels and may produce th. Based on FDA medical device recall database.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
A decrease in mP values (calibration curve Net Polarization value) has been observed with this reagent lot at all calibrator levels and may produce the following results: Calibration Error Code 148 (Polarization Too Small), Calibration Error Code 172 (Calibration Not Stored or Calibration Not Accepted) Controls out of range (when using a stored calibration curve).
Recommended Action
Per FDA guidance
An April 11, 2007, Product Recall Letter was sent to all customers who received the affected lot. All customers who received the affected lot will be contacted. The following communication types were used: Product Recall Letter & Customer Reply Form. Letters were sent to customers by Federal Express Priority mail. The Customers were instructed the following: To discontinue use of and destroy IMx Theophylline reagent lot 41610QI00. If they had forwarded the lots listed in the Product Recall letter to other laboratories, they were instructed to inform them of this Product Recall and provide a copy of this letter to them. They also we instructed to retain a copy of the communication for their records
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 noticeDistribution
As reported by FDA
CA, IL, MA, NY, OR, PA, VA, WV
Page updated: Jan 10, 2026