benzokaina

Benzocaine is a local anesthetic commonly used to numb skin and mucous membranes. It belongs to the ester class of local anesthetics. Chemically, it is ethyl 4-aminobenzoate. Benzocaine works by reversibly blocking nerve impulses in the area where it is applied. This prevents the transmission of pain signals to the brain, resulting in a temporary loss of sensation.

It is available in various over-the-counter formulations, including creams, gels, sprays, and lozenges. These products are used to alleviate pain from minor cuts, scrapes, sunburns, insect bites, sore throats, and teething discomfort in infants. In some prescription medications, benzocaine may be used for more specific medical procedures.

While generally considered safe when used as directed, benzocaine can cause side effects. These may include allergic reactions, skin irritation, and, in rare cases, methemoglobinemia, a serious condition affecting the blood's ability to carry oxygen. It is important to follow dosage instructions and consult a healthcare professional if any concerns arise or if symptoms do not improve. Benzocaine is not intended for prolonged use or for application to large areas of the body.