Recall Register

Drug recall: ZYFLO CR (zileuton) extended-release tablets, 600 mg, 120-count bottles, Rx only, Distributed by Chiesi USA, Inc.…

Class II FDA enforcement event 82993. Recall start date: . Status in the FDA record: Terminated. Termination date: .

Reason for recall, in the words of FDA

Failed Dissolution Specifications: Out of specification result for dissolution.

Class II, in the words of FDA

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

Chiesi USA, Inc. started this drug recall on 31 May 2019. The firm address in the FDA record is in Cary, NC. FDA put the recall in Class II. FDA event 82993 has 2 product records. The first FDA enforcement report date is 19 Jun 2019. The record gives the status Terminated, with the termination date 8 Mar 2021.

It is important to note that most of the time recall classifications are determined after the recalling firm provides all of the information needed to determine the risk posed to public health. The classification and posting in the FDA Enforcement Report should not be seen as an expansion or change to a firm’s voluntary public warning.

FDA publishes these words. Source: FDA, Enforcement Reports, Important Note, read on . openFDA export of .

Distribution

In the words of FDA.

Nationwide in the USA.

Recalling firm

Chiesi USA, Inc., Cary, NC.

Recalling firm: The firm that the FDA record names for a recall.

FDA records how the recall started: Voluntary: Firm initiated.

Products

2 product records in the event.

FDA event 82993: product records
Recall numberProductQuantityClassStatusReport date
D-1341-2019ZYFLO CR (zileuton) extended-release tablets, 600 mg, 120-count bottles, Rx only, Distributed by Chiesi USA, Inc., Cary, NC 27518, NDC 10122-902-12.2118 bottlesClass IITerminated19 Jun 2019
D-1342-2019Zileuton Extended-Release Tablets, 600 mg, 120-count bottles, Rx only, Distributed by: Prasco Laboratories, Mason, OH 45040 USA; NDC 66993-485-32.2598 bottlesClass IITerminated19 Jun 2019

openFDA, about the status: FDA does not update the status of a recall after the recall has been classified according to its level of hazard. As such, the status of a recall (open, completed, or terminated) will remain unchanged after published in the Enforcement Reports. Source: openFDA, Drug Recall Enforcement Reports, Disclaimer.

Enforcement report: The FDA publication that lists recalls. It has one record for each product of a recall.

Enforcement event: All the product records that have one FDA event number. This site shows one event on one page.

Class II: The middle of the three FDA recall classes.

The event in context

Drug events that started in 2019
362
Share of these events in Class II
68%
Product records in this event
2Median of the firm: 1
Events of the firm on the register
4

Other events of the firm

Official channels

Cite this page

Recall Register. FDA enforcement event 82993. https://recallregister.com/fda/ii/82993/. Source: openFDA enforcement reports. Data through .

Sources

Source
openFDA drug enforcement reports
Licence
CC0 1.0
Export date
28 Sep 2026
Newest FDA report date on the register
23 Sep 2026

FDA has one record for each product. This site puts the records with the same event number on one page. The class of the event is the highest class of its records. How the register is made. Report an error.

Questions

Where was the product distributed?
The FDA record gives this distribution: Nationwide in the USA.
What quantity of product is in FDA event 82993?
The event has 2 product records. The first record gives this quantity: 2118 bottles
How did the recall start?
The FDA record says: Voluntary: Firm initiated
How many drug recalls of 2019 have the same class?
68% of the 362 drug events that started in 2019 are in Class II.