benzocaine 20 % topical ointment

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Medication name

Generic name:
Benzocaine - topical

Pronunciation
(BEN-zoe-kane)

Brand name(s)
Americaine , Boil Ease

Uses

This medication is used on the skin to stop itching and pain from certain skin conditions (such as scrapes, minor burns, insect bites) and to treat minor discomfort and itching caused by hemorrhoids and certain other problems of the genital/anal area (such as anal fissures, itching around the vagina/rectum). Benzocaine is a local anesthetic that works by causing temporary numbness/loss of feeling in the skin.

How to use

If you are using the over-the-counter product to self-treat, read all directions on the product package before using this medication. If you have any questions, consult your pharmacist. If your doctor has prescribed this medication, use it as directed.

Before use, clean and dry the affected area as directed. Apply a thin layer of medication to the affected area of skin as directed.

If you are using the spray, shake the can well before using. Hold the can 6 to 12 inches (15 to 30 centimeters) from the affected area and spray until wet. Do not spray near your eyes, nose, or mouth.

Do not use on large areas of the body, cover the area with waterproof bandages or plastic, or apply heat unless directed to do so by your doctor. Doing so may increase the risk of serious side effects.

Wash your hands right after use unless you are treating an area on the hands. Avoid getting the product in your eyes, nose, or mouth. If the medication gets in these areas, rinse right away with plenty of water.

The dosage is based on your medical condition and response to treatment. Do not use more of this product, use it more often, or use it longer than directed.

If your condition lasts or gets worse, or if you think you may have a serious medical problem, get medical help right away.

Side effects

Temporary redness, stinging, or irritation at the application site may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

If your doctor has directed you to use this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Get medical help right away if you have any very serious side effects, including:

  • slow/shallow breathing
  • slow/irregular heartbeat
  • seizures

This medication has rarely caused a very serious (possibly fatal) blood disorder (methemoglobinemia). This effect is more likely if you have breathing problems, certain diseases of the blood, or if you smoke (see also Precautions section). The symptoms of this disorder may occur within minutes to a couple of hours after using this medication. Stop using this medication and get medical help right away if you develop any symptoms of methemoglobinemia, including:

  • pale/bluish/gray skin
  • unusual tiredness
  • shortness of breath
  • fast heartbeat
  • dizziness
  • headache
  • confusion

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including:

  • rash
  • new or worsening itching/swelling (especially of the face/tongue/throat)
  • severe dizziness
  • trouble breathing

This is not a complete list of possible side effects. If you notice any other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Precautions

Before using benzocaine, tell your doctor or pharmacist if you are allergic to it; or to other "caine" anesthetics (such as procaine); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of:

  • broken skin/infection in the affected area
  • heart disease
  • certain blood disorders (G6PD deficiency, pyruvate kinase deficiency, hemoglobin-M disease, NADH-methemoglobin reductase deficiency)
  • breathing problems (such as asthma, bronchitis, emphysema, smoking history)

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.

It is unknown if this medication passes into breast milk. Consult your doctor before breastfeeding.

Drug interactions

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Overdose

This medicine may be harmful if swallowed. If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call 1-800-222-1222. Canada residents can call 1-844-764-7669. Symptoms of overdose may include: irregular heartbeat, seizures.

Notes

Keep all regular medical and lab appointments.

Missed dose

If you are using this product on a regular schedule and miss a dose, use it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Use your next dose at the regular time. Do not double the dose to catch up.

Storage

Store at room temperature. Do not freeze. Keep all medications away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.

Important note

HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.

Information last revised October 2024.

Selected from NATIONAL DRUG DATA FILE (NDDF) data included with permission and copyrighted by First Databank, Inc., 2019. This copyrighted material has been downloaded from a licensed data provider.

The above information is intended to supplement, not substitute for, the expertise and judgment of your health care professional. You should consult your health care professional before taking any drug, changing your diet, or commencing or discontinuing any course of treatment.