How long does benzocaine last?
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It is a local anesthetic that begins to numb the lining of the mouth and throat 15 to 30 seconds after application and continues for about 15 minutes.
What is Benzocaine used for?
Sore Throat and Mouth Sore
Itching and burning outside of the vagina
Pain and itching from hemorrhoids
Mild skin irritation, pain and itching
What is the difference between the anesthetic intensity of tetracaine hcl powder and lidocaine, procaine and Dimethoca?
Role: local anesthetics. Tetracaine base >tetracaine hcl>lidocaine>lidcaine hcl> benzocaine > procaine>procaine hcl, but the corresponding side effects will also increase.
It's not that the greater the intensity of anesthesia, the better, unless you want to suffer from more side effects. Generally choose the one that suits you.
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