FDA Biosimilar Drug Development

FILE - The Food and Drug Administration seal is seen at the Hubert Humphrey Building Auditorium in Washington, April 22, 2025. (AP Photo/Jose Luis Magana, File)

(NBC CHICAGO) — A popular nasal spray sold at retailers nationwide is being recalled because it was found to contain mold and microbial contamination, with customers urged to "immediately" discontinue using the product.

The voluntary recall of ReBoost Nasal Spray was issued Wednesday by MediNatura New Mexico, according to an announcement from the Food and Drug Administration. According to the announcement, one lot of the nasal spray was found to contain yeast/mold and be contaminated with unsafe levels of of species of the bacteria Achromobacter.

According to the FDA, there is "reasonable probability" that adverse health problems or life-threatening infections will occur if the product is used by people who are immuno-compromised.

The homeopathic nasal spray was distributed nationwide to retailers including CVS, Walmart and Amazon. It is used to temporarily relieve nasal congestion, sinus headache and pressure, postnasal drip, sneezing, runny nose, and nasal itching, the FDA said, and is packaged in a 20mL bottle.

The recalled ReBoost product includes lot number 224268 with an expiration date of December 2027 and can be identified by its bottle label and carton.

The FDA warned that customers should immediately discontinue using the recalled ReBoost, and return it to the place of purchase for a full refund.

According to authorities, no reports of adverse events related to the recall have been reported.

MediNatura did not immediately respond to NBC Chicago's request for comment.