丁卡因

Also known as Metraspray, Dicaine, Medihaler-Tetracaine, Pontocaine, p-Butylaminobenzoyl-2-dimethylaminoethanol, 2-(Dimethylamino)ethyl p-(butylamino)benzoate, p-(butylamino)benzoic acid beta-(dimethylamino)ethyl ester, Amethocaine

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