There was 1 confirmed report that the flexible container contained several grey/brown particles, which were later identified as copper, zinc and lead.
Hospira is warning customers to pull any containers bought between January 2013 and March 2013. The medical device company is calling this a precautionary measure and said no patients have been harmed.
An FDA warning letter went out to consumers March 29 about the possible contamination.
Hospira is investigating the cause, according to a statement. The product is a water and electrolytes infusion system sold in 1000 mL flexible containers. Hospira is asking customers to return any products with an expiry date of January 1, 2015, in exchange for replacement products from other, uncontaminated lots.