Is it safe to use Benzocaine Hydrochloride?

Benzocaine Hydrochloride is a surface anesthetic that acts by preventing transmission of impulses along nerve fibers and at nerve endings. Benzocaine Hydrochloride is used to relieve pain and itching on wounds, ulcers, burns, and chapped skin. Benzocaine is a type of local anesthetic we use as a topical pain reliever. But if we use products containing a high amount of Benzocaine Hydrochloride as a topical application on the skin, Benzocaine Hydrochloride can cause severe effects.

• Is it safe to use Benzocaine Hydrochloride?

• How to use Benzocaine Hydrochloride?

• Why Benzocaine Hydrochloride can be used as local anesthetic?

1. Is it safe to use Benzocaine Hydrochloride?

Benzocaine Hydrochloride is a topical anesthetic. Benzocaine Hydrochloride is available over the counter as a rectal ointment. It can be used safely to temporarily relieve pain, burning, and itching caused by hemorrhoids or other rectal conditions. However, it is not recommended to long term use.

Your body may absorb more of Benzocaine Hydrochloride if you use too much, if you apply Benzocaine Hydrochloride over large skin areas, or if you apply heat, bandages, or plastic wrap to treated skin areas. Skin that is cut or irritated may also absorb more Benzocaine Hydrochloride than healthy skin.

Use the smallest amount of Benzocaine Hydrochloride needed to numb the skin or relieve pain. Do not use large amounts of Benzocaine Hydrochloride. Do not cover treated skin areas with a bandage or plastic wrap without medical advice.

Benzocaine Hydrochloride is a fat-soluble surface anesthetic. Compared with several other local anesthetics, Benzocaine Hydrochloride has a lower strength of action so that it will not cause discomfort due to anesthesia when it acts on the mucous membrane. Benzocaine Hydrochloride is easy to combine with the mucous membrane or the lipid layer of the skin, but it is not easy to penetrate and enter the human body to cause toxicity.

2. How to use Benzocaine Hydrochloride?

Use exactly as directed on the label of Benzocaine Hydrochloride, or as prescribed by your doctor. Read all medication guides or instruction sheets before using Benzocaine Hydrochloride.

Do not use Benzocaine Hydrochloride to treat large skin areas or deep puncture wounds. Avoid using Benzocaine Hydrochloride on skin that is raw or blistered, such as a severe burn or abrasion.

To treat minor skin conditions, apply a thin layer of Benzocaine Hydrochloride to the affected area. If using the spray, hold the container 6 to 12 inches away from the skin.

Do not spray Benzocaine Hydrochloride onto your face. Instead, spray it on your hands and then rub it onto the face, avoiding contact with your eyes.

Clean the area with soap and water before applying Benzocaine Hydrochloride. Wash your hands before and after inserting a rectal suppository.

Call your doctor if your symptoms do not improve or if they get worse within the first 7 days of using Benzocaine Hydrochloride. Also call your doctor if your symptoms had cleared up but then came back. When you are treating a sore throat, call your doctor if the pain is severe or lasts longer than 2 days, especially if you also develop a fever, headache, skin rash, swelling, nausea, vomiting, cough, or breathing problems.

3. Why Benzocaine Hydrochloride can be used as local anesthetic?

Benzocaine Hydrochloride acts by blocking voltage-gated sodium ion channels in nerve endings. Benzocaine Hydrochloride is available over-the counter for local anesthesia of oral and pharyngeal mucous membranes, such as sore throat, cold sores, mouth ulcers, toothache, sore gums, denture irritation, and ear pain, or as a local anesthetic for surgical or diagnostic procedures. As a spray, Benzocaine Hydrochloride is used for temporary relief of pain and itching associated with minor burns, sunburn, minor cuts or scrapes, insect bites, or minor skin irritations. Topical application of Benzocaine Hydrochloride to gums or mouth may cause rare, serious and potentially fatal adverse effect methemoglobinemia.  

Benzocaine Hydrochloride is an ester of para-aminobenzoic acid, lacking the terminal diethylamino group of procaine, with anesthetic activity. Benzocaine Hydrochloride binds to the sodium channel and reversibly stabilizes the neuronal membrane which decreases permeability of Benzocaine Hydrochloride to sodium ions. Depolarization of the neuronal membrane is inhibited, thereby blocking the initiation and conduction of nerve impulses.

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