CORVALLIS, Ore. — Samaritan Health Services pharmacies are notifying customers about a voluntary recall of certain prazosin hydrochloride capsules, a medication commonly used to treat high blood pressure, due to potential contamination with cancer-linked impurities.

Teva Pharmaceuticals USA initiated the recall after discovering traces of N-nitroso-prazosin impurity C in specific lots of the drug. The impurity is a type of nitrosamine that has been associated with an increased risk of cancer, though the Food and Drug Administration has stated the risk of serious health consequences remains remote.

According to Samaritan officials, fewer than 1% of their pharmacy customers received prescriptions from the affected lots. The health system emphasized that patients who fill prescriptions at multiple pharmacies or receive care from outside providers should check with their pharmacist or physician to confirm if their medication is impacted.

“We want the entire community to stay informed,” said Mark Ylen, a spokesperson for Samaritan Health Services. “Whether you’re under our care or with a neighboring provider, please consult your health care team if you have concerns or are interested in alternative treatments.”

Prazosin hydrochloride is primarily prescribed for hypertension but is also used off-label to manage symptoms of post-traumatic stress disorder, such as nightmares. The FDA notes that any potential effects from the impurity are likely temporary and reversible with medical intervention.

Patients with questions can contact their provider through MyChart or by phone. For a list of affected lot numbers, visit the FDA’s website and search for the Enforcement Report.

Samaritan Health Services operates multiple pharmacies across the mid-Willamette Valley, serving thousands of patients annually.