Lidocaine

Lidocaine, also known as xylocaine or lignocaine, is a chemical compound that belongs to a class of drugs called local anesthetics. Its chemical structure allows it to block the sodium channels in the cell membranes of neurons, which prevents the initiation and conduction of nerve impulses, leading to a loss of sensation in the area.

Application of lidocaine serves as a temporary desensitizer for the penis to delay ejaculation.
While lidocaine is generally safe when used as directed, it can cause side effects in some individuals. Common side effects might include temporary redness, tingling, swelling at the application site, or in rare cases, an allergic reaction.