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Teva Pharmaceuticals USA, Inc. Expands Voluntary Nationwide Recall of Losartan Potassium to 50 mg and 100 mg Tablets USP, Sold Exclusively to Golden State Medical Supply, Inc.

Audience: Consumer, Health Professional, Pharmacy

June 11, 2019 -- Teva Pharmaceuticals USA, Inc. has expanded its voluntary consumer-level recall originally initiated on April 25, 2019 in the United States of losartan potassium tablets. This expanded recall includes six (6) lots of bulk losartan potassium USP Tablets (two lots of 50 mg strength and four lots of 100 mg strength) due to the detection of an impurity – N-Nitroso-N-methyl-4-aminobutyric acid (NMBA) – that is above the US Food & Drug Administration’s interim acceptable exposure limit of 9.82 ppm. The source of the NMBA impurity was detected in one lot of active pharmaceutical ingredient (API), manufactured by Hetero Labs Limited, which was used in the manufacturing of the six (6) bulk lots of these drug products. Based on the available information, there is a potential risk of developing cancer in a few patients following long-term use of products containing high levels of NMBA.

For more information on the previous recall initiated on April 25, 2019, click here.

Losartan potassium is indicated for the treatment of hypertension, hypertensive patients with left ventricular hypertrophy, and nephropathy in Type 2 diabetic patients. The bulk lots were sold exclusively to Golden State Medical Supply, Inc. of Camarillo, California. Golden State Medical Supply, Inc. packaged these bulk products under its own label and distributed retail bottles of 30, 90 and 1000 tablets to their customers.

The affected losartan potassium tablets being recalled are described as:

Teva promptly notified Golden State Medical Supply, Inc. of the presence of the impurity in Hetero’s API and Teva will recall six (6) lots of bulk losartan potassium tablets sold to that company. The tablets, which have been packaged and sold by Golden State Medical Supply, Inc., will be sub-recalled from their customers and patients. Distributors and retailers that have product being recalled should immediately stop distribution, quarantine all remaining product in their control, and return the recalled product per the instructions given to them by Golden State Medical Supply, Inc.

Patients taking losartan potassium tablets are advised to continue taking their medication and contact their pharmacist, physician, or medical provider for advice regarding an alternative treatment. The immediate risk of harm to a patient’s health is likely to be higher if the medicine is stopped abruptly without any alternative treatment. For full drug product information, please refer to the full prescribing information for losartan potassium tablets USP.

Customers and patients with medical-related questions, who wish to report an adverse event, or quality issues about the Teva products being recalled under the Golden State Medical Supply label should contact Teva Medical Information by phone at: 888-838-2872, option 3, then, option 4. Live calls are received Monday-Friday, 9:00AM-5:00PM Eastern Time with voicemail available 24 hours/day, 7 days/week or by email at

Adverse reactions or quality problems experienced with the use of this product may be reported to the FDA's MedWatch Adverse Event Reporting program either online, by regular mail or by fax.

  • Complete and submit the report Online
  • Regular Mail or Fax: Download form or call 1- 800-332-1088 to request a reporting form, then complete and return to the address on the pre-addressed form, or submit by fax to 1-800-FDA-0178

This recall is being conducted with the knowledge of the U.S. Food and Drug Administration.

Lots Under Voluntary Recall

The finished product lots that are included in this voluntary recall and listed below were sold by Teva in bulk containers. The bulk tablet lots were repackaged into seven (7) finished product lots for further distribution by Golden State Medical Supply under its product label. 

NDC Description
GSMS FG Product Lots GSMS FG
Expiration Dates
60429-317-10 LOSARTAN POTASSIUM 50 mg
TABLETS, USP 1000 tablets/bottle
GS017387 01/2020
60429-317-90 LOSARTAN POTASSIUM 50 mg
TABLETS 90 tablets/bottle
GS017651 01/2020
60429-317-10 LOSARTAN POTASSIUM 50 mg
TABLETS 30 tablets/bottle
GS017387 01/2020
60429-318-90 LOSARTAN POTASSIUM 100 mg
TABLETS 90 tablets/bottle
GS017042 01/2020
60429-318-90 LOSARTAN POTASSIUM 100 mg
TABLETS 90 tablets/bottle
GS017043 01/2020
60429-318-90 LOSARTAN POTASSIUM 100 mg
TABLETS, USP 90 tablets/bottle
GS017044 01/2020
60429-318-90 LOSARTAN POTASSIUM 100 mg
TABLETS, USP 90 tablets/bottle
GS017541 01/2020

Note – “GSMS FG” refers to Golden State Medical Supply Finished Goods.

Patients wishing to return product may contact Teva’s product recall processor to obtain instructions and a return kit for returning their medication:

  • Contact Inmar at 877-789-2065 (Hours of operation: 9 am to 5 pm Eastern Time, Monday – Friday) or email Inmar at:
  • Inmar will provide the materials needed to return their medication and instructions for reimbursement.

Customers of Golden State Medical Supply, Inc. may contact them at:

  • Call: (800) 284-8633, ext. 215
  • Fax: (805) 437-7582
  • Email:

Source: FDA