EMA Flags Nitrosamine Impurity Across Three Sartan Suppliers; Recall Scope Under Review

Losartan EMAHetero LabsValsartan

Senior Regulatory Intelligence Analyst

EXECUTIVE SUMMARY

Affected lots span valsartan and losartan batches distributed across the EU and UK since Q4 2025, with recall scope and supplier remediation under active review.

What Happened

The EMA flagged nitrosamine impurities across batches from three sartan API suppliers, affecting valsartan and losartan lots distributed since Q4 2025. National competent authorities are assessing recall scope while suppliers conduct root-cause investigations.

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Supply Chain Impact

Sartans are high-volume cardiovascular generics with concentrated API sourcing. A wide recall would tighten EU supply quickly; formulators with diversified, nitrosamine-tested sources are best insulated.

Historical Correlation

Nitrosamine findings have recurred in the sartan class since 2018. The latest flag reinforces the need for routine impurity surveillance as a standing procurement control rather than a one-off response.

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