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Lower risk Drug recall · FDA · Published December 19, 2017

Unichem Divalproex Tablets Recall: Metronidazole Cross Contamination Risk

Unichem Pharmaceuticals recalls 500mg Divalproex Sodium tablets due to metronidazole powder cross contamination. This could cause unintended medication interactions. Return to Unichem for replacement.

🇺🇸 FDA recall #D-0228-2018DrugUnichem ›
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Recalling firmUnichem Pharmaceuticals Usa Inc777 Terrace Ave, Suite 102 · Hasbrouck Heights, NJ 07604-3102
✎ GovInfoNow plain-language explainer

What happened, in plain English

Unichem Pharmaceuticals is recalling 500mg Divalproex Sodium Delayed Release Tablets because one batch contained metronidazole powder. This cross-contamination could lead to unintended medication interactions if taken with metronidazole. Read more at govinfonow.com/recall/41009-unichem-divalproex-tablets-recall-metronidazole-cross-contamination-risk.

Source Summary by GovInfoNow · govinfonow.com/recall/41009-unichem-divalproex-tablets-recall-metronidazole-cross-contamination-risk · Updated October 7, 2026 · FDA enforcement record: FDA #D-0228-2018

Cite this page

“Unichem Divalproex Tablets Recall: Metronidazole Cross Contamination Risk.” GovInfoNow, updated October 7, 2026. https://govinfonow.com/recall/41009-unichem-divalproex-tablets-recall-metronidazole-cross-contamination-risk. Based on FDA recall #D-0228-2018 (https://api.fda.gov/drug/enforcement.json?search=recall_number:%22D-0228-2018%22&limit=1).

Why it’s dangerous

Metronidazole powder was found in one batch of Divalproex tablets. This cross-contamination could cause unintended medication interactions if the patient takes the tablets with metronidazole.

Who’s affected

Prescription patients using the recalled 500mg Divalproex Sodium tablets. Those with specific medication interactions are at higher risk.

How to tell if you have this one

Check for NDC 29300-140-01 and lot number ZDPH17040 on the bottle. The product is a 100-count prescription bottle manufactured by Unichem Laboratories in India.

  • Brand
    Unichem
  • Category
    Drug
Based on the official FDA remedy

What to do — step by step

  1. Check Product Details

    Look for NDC 29300-140-01 and lot number ZDPH17040 on the bottle label.

  2. Contact Manufacturer

    Contact Unichem Pharmaceuticals (USA) at Hasbrouck Heights, NJ 07604 for replacement options.

Where it went and when

Where it was distributed

Distributed nationwide.

Alaska: yesAKMaine: yesMEVermont: yesVTNew Hampshire: yesNHWashington: yesWAIdaho: yesIDMontana: yesMTNorth Dakota: yesNDMinnesota: yesMNIllinois: yesILWisconsin: yesWIMichigan: yesMINew York: yesNYRhode Island: yesRIMassachusetts: yesMAOregon: yesORNevada: yesNVWyoming: yesWYSouth Dakota: yesSDIowa: yesIAIndiana: yesINOhio: yesOHPennsylvania: yesPANew Jersey: yesNJConnecticut: yesCTCalifornia: yesCAUtah: yesUTColorado: yesCONebraska: yesNEMissouri: yesMOKentucky: yesKYWest Virginia: yesWVVirginia: yesVAMaryland: yesMDDelaware: yesDEArizona: yesAZNew Mexico: yesNMKansas: yesKSArkansas: yesARTennessee: yesTNNorth Carolina: yesNCSouth Carolina: yesSCDistrict of Columbia: yesDCOklahoma: yesOKLouisiana: yesLAMississippi: yesMSAlabama: yesALGeorgia: yesGAHawaii: yesHITexas: yesTXFlorida: yesFL

FDA distribution: “Product was distributed nationwide in the USA.” States read from FDA’s own wording; “not listed” means the notice does not name it.

Distributed nationwide.

Recall timeline

FDA terminated this recall 9 months after the firm started it.

1. Firm started the recall: Dec 19, 201712. FDA classified it Class II: Jan 17, 201823. Published in FDA’s Enforcement Report: Jan 24, 201834. FDA terminated the recall: Sep 12, 2018420172018
  1. Firm started the recall
  2. FDA classified it Class II
  3. Published in FDA’s Enforcement Report
  4. FDA terminated the recall

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 #D-0228-2018 (December 19, 2017) — FDA publishes no per-recall page; this is the official machine-readable enforcement record. Search FDA recalls for D-0228-2018 to see it in context.
  • Plain-language summary written by qwen3:4b on October 7, 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