Can benzocaine be ingested?

Under normal circumstances, benzocaine should not be ingested. The detailed explanation is as follows:

Benzocaine is a local anesthetic intended for use only on the skin or mucosal surfaces. Ingestion can cause multiple harmful effects on the body. Once entering the digestive tract, the drug may irritate the mucous membranes, leading to symptoms such as nausea, vomiting, and abdominal pain. It can also be absorbed into the bloodstream and affect the nervous system, causing dizziness, tinnitus, or even confusion. In some individuals, ingestion may trigger methemoglobinemia, resulting in serious reactions such as cyanosis (bluish discoloration) of the lips and difficulty breathing, which could be life-threatening. Therefore, benzocaine must never be consumed.

If accidental ingestion occurs, stop further intake immediately, induce vomiting as soon as possible, and seek medical attention promptly. Inform the doctor of the amount ingested and the time of exposure. When using benzocaine preparations, avoid application on broken or damaged skin, and wash hands thoroughly after use to prevent contact with food or entry into the mouth. Store the medication in a cool, dry place, strictly separated from food, and always keep it out of reach of children to prevent accidental access or ingestion.