Given the high frequency of recalls, many experts have called for improving control of manufacturing processes as the affected drugs were traced back to factories in China and India.
Alternative treatment options, as advised by an expert, may involve opting for a different manufacturer or switching to another blood pressure drug.
The company says it has detected trace amounts of N-nitrosodiethylamine, which has been classified as a probable human carcinogen by the International Agency for Research on Cancer.
Products manufactured by Accord Healthcare (formerly Actavis) and Dexcel Pharma, which contain irbesartan, may have been contaminated with N-nitrosodiethylamine (NDEA) - a carcinogenic chemical that was formerly used in rocket fuel.
It affects 80 lots of Amlodipine Valsartan Tablets USP, Valsartan HCTZ Tablets, USP and Valsartan Tablets USP.
Patients on Losartan are encouraged to continue taking the medication because "the risk of harm to the patient's health may be higher if the treatment is stopped immediately without any alternative treatment". In all of these cases of blood pressure drug recalls, it is important for consumers to consult their physician before discontinuing use of these drugs.
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If your medication has been affected by the recall, contact a health care professional for further information. While the company says it has not received any reports of patients suffering adverse effects related to the recall, it still wants the drugs back.
If you think you've experienced adverse reactions, you can report them at the FDA's MedWatch website.
Losartan is used to treat hypertension, hypertensive patients with Left Ventricular Hypertrophy and for the treatment of nephropathy in Type 2 diabetic patients.
Immediately stopping medication without an alternative could be risky.
Those that have recently bought one or several bottles of medication are asked to visit the FDA website and compare that lot numbers on the site with those that are written on the bottles. Torrent is recalling only these particular losartan potassium tablets.