WASHINGTON (AP) — Federal health officials are warning parents about the dangers of teething remedies that contain a popular numbing ingredient.

The Food and Drug Administration is asking manufacturers to stop selling their products intended for babies and toddlers.

The agency said Wednesday that various gels containing the drug benzocaine (BEN-zoh-keyn) can cause rare but deadly side effects in children, especially those 2 years and younger.

Benzocaine is found in popular brands used to treat mouth sores in adults, including Orajel and Anbesol.

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