Function:

Tetracaine, also known as amethocaine, is a local anesthetic used to numb the eyes, nose, or throat. It may also be used before starting an intravenous to decrease pain from the procedure. Typically it is applied as a liquid to the area. Onset of effects when used in the eyes is within 30 seconds and last for less than 15 minute.However, most of the tetracaine hydrochloride is still used for unconventional purposes. Such as illegal use. Especially in Brazil, tetracaine hydrochloride has been flooding in Brazil. They mixed tetracaine hydrochloride with several other drugs to make a product, and sold it in the market to achieve profiteering. Most of the tetracaine hydrochloride is flowing in the black market.

Common side effects include a brief period of burning at the site of use. Allergic reactions may uncommonly occur. Long term use is generally not recommended as it may slow healing of the eye. It is unclear if use during pregnancy is safe for the baby. Tetracaine is in the ester-type local anesthetic family of medications. It works by blocking the sending of nerve impulses.