Benzocaine is used short term to relieve pain from minor
mouth problems (such as toothache, canker sores, sore gums/throat,
mouth/gum injury). It is a local anesthetic that works by numbing the
painful area.
Do not use this product for children younger than 2
years due to risk of serious side effects. Ask your doctor for more
details.
Follow all directions on the product package. If your
doctor has prescribed this medication, use it as directed. If you have any
questions, ask your doctor or pharmacist.
Do not use this medication more than 4 times a day
unless directed by your doctor. Allow medication to stay on painful area
for at least 1 minute before spitting out or rinsing the
mouth.
Do not use large amounts of this drug or use more often
than directed because the risk for serious side effects (including rarely
fatal methemoglobinemia) will increase.
Avoid getting this medication in the eyes.
Stop using this medication and tell your doctor if your
sore throat is severe or if it lasts for more than 2 days, or if your sore
mouth symptoms last more than 7 days, or if you have a fever, headache,
rash, swelling, nausea, or vomiting. You may have a serious medical problem
that may require different treatment. If your condition lasts or gets
worse, or if you think you may have a serious medical problem, get medical
help right away.
Slight burning, tingling, or stinging 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.
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
- 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 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.
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.
If you have any of the following health problems,
consult your doctor or pharmacist before using this
product:
- 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 product should be used only when
clearly needed. Discuss the risks and benefits with your
doctor.
It is unknown if this product passes into breast milk.
Consult your doctor before breastfeeding.
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.
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:
slow/shallow breathing, seizures, irregular heartbeat.
Keep all medical and lab appointments.
Store at room temperature. 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.