FDA recalls popular blood pressure med Losartan for possible cancer-causing impurity

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FDA recall on Losartan, a popular blood pressure medication. Photo/Carol Robidoux

WASHINGTON, D.C. – The U.S. Food and Drug Administration has issued a recall on a popular blood pressure medication, citing that a “bad batch” may include a carcinogen.

The announcement  issued Nov. 8 is posted on the FDA website, describes the voluntary recall on behalf of the manufacturer, Sandoz Inc. According to the recall, the tainted product was distributed after Oct. 8, 2018.

This is not the first recall of blood pressure medication for similar reasons.

The FDA recently recalled blood pressure drug irbesartan for the same defect. That product callback followed on another NDEA-related drug recall, for another blood pressure medication, valsartan,  in July.

As with previous recalls, the FDA cautions that if you take these hypertension medications, it is important to consult a pharmacist or physician before discontinuing use of the drug, as that may have even more severe effects than taking a contaminated pill.


Sandoz Inc. is voluntarily recalling one lot of Losartan Potassium Hydrochlorothiazide Tablets, USP 100mg/25mg to the consumer level. This product is being recalled due to the trace amount of an impurity, N-nitrosodiethylamine (NDEA) contained in the API Losartan, USP manufactured by Zhejiang Huahai Pharmaceutical Co. Ltd. Sandoz Inc. Losartan Potassium Hydrochlorothiazide product is manufactured by Lek Pharmaceuticals dd, Ljubljana, Slovenia. This impurity, which is a substance that occurs naturally in certain foods, drinking water, air pollution, and industrial processes, has been classified as a probable human carcinogen as per International Agency for Research on Cancer (IARC).

To date, Sandoz Inc. has not received any reports of adverse events related to this lot.

Losartan Potassium Hydrochlorothiazide Tablets, USP are indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive agents. The product can be identified as Losartan Potassium Hydrochlorothiazide, 100 mg/25 mg tablets in 1000-count plastic bottles, NDC 0781-5207-10, Lot number JB8912; Exp. Date 06/2020. This product was distributed nationwide to distributors. The affected product was not distributed prior to October 8, 2018.

Sandoz Inc. is notifying its distributors by letter via overnight mail and patients by this public notification. Distributors and retailers that have product which is being recalled should immediately stop distribution of the identified lot above and quarantine any quantities remaining in your control and return the recalled product to the identified Reverse Distributor.

Patients with questions regarding this recall can contact Sandoz Inc. at 1-800-525-8747 Monday-Friday 8:30 AM – 5:00 PM (EST) or email usdrugsafety.operations@novartis.com. Patients should contact their pharmacist or physician who can advise them about an alternative treatment prior to returning their medication. Patients who are on Losartan Potassium Hydrochlorothiazide should continue taking their medication, as the risk of harm to a patient’s health may be higher if the treatment is stopped immediately without any alternative treatment. Patients should contact their physician or healthcare provider if they have experienced any problems that may be related to taking or using Losartan Potassium Hydrochlorothiazide.

Adverse reactions or quality problems associated with the use of this product may be reported to FDA’s MedWatch Adverse Event Reporting program either by phone, on line, by regular mail or by fax.

This recall is being made with the knowledge of the Food and Drug Administration.

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U.S. Food and Drug Administration