Federal regulators have announced a nationwide recall of a widely used allergy medication after concerns that it may have been mixed up with another drug during production or handling. The U.S. Food and Drug Administration said the possible cross-contamination could expose people to an unintended medication.

According to the agency, the main concern is that the drug mix-up may trigger severe allergic responses in some patients. Regulators warned that the reaction risk could be serious and, in some cases, potentially life-threatening.

The recall highlights the dangers of medication errors involving contamination or product confusion, especially for consumers who rely on allergy treatments for routine symptom relief. Even a small amount of an unintended drug can create significant health risks for people with sensitivities or underlying conditions.

The FDA’s notice adds this case to a growing list of safety actions aimed at removing potentially unsafe products from circulation. Consumers using recalled allergy medication should pay close attention to official recall information as regulators continue monitoring the issue.