A pharmaceutical company, K.C. Pharmaceuticals, has recalled over 3 million bottles of over-the-counter eye drops due to concerns about a “lack of assurance of sterility” identified by the FDA.

The recall affects multiple products sold under various brand names at major retailers like CVS, Walgreens, and Rite Aid.

The FDA classified the action as a Class II recall, meaning the products may cause temporary or reversible health effects, though no injuries have been reported.

It remains unclear what specifically triggered the recall, and the company has not provided additional comment, NBC News has reported.

Consumers are generally allowed to continue using the products unless otherwise advised, but the recall covers several formulations of artificial tears and lubricating eye drops.