Tetracaine, also known as amethocaine, is used as an ester local anesthetic on numb the eyes, nose, or throat. It may also be applied to the skin

before starting an intravenous (injection) 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 minutes.

Tetracaine side effects 

There will be a short 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.


Tetracaine technical data: