What is famotidine
is in a class of drugs called histamine receptor antagonists.
Famotidine works by decreasing the amount of acid the stomach
is used to treat and prevent ulcers in the stomach and intestines.
Famotidine is also used to treat conditions in which the stomach
produces too much acid and conditions in which acid comes
up into the esophagus and causes heartburn, such as gastroesophageal
reflux disease (GERD).
may also be used for conditions other than those listed in
this medication guide.
General medical information about famotidine
Do not stop taking this medication without first
talking to your doctor. It may take up to 8 weeks for an
ulcer to heal.
Do not take antacids within 1 hour
of taking famotidine. Antacids may decrease the effectiveness
What you should find out before taking
Before taking this medication, tell your doctor if you have:
- kidney disease; or
- liver disease.
You may not be able to take famotidine, or you may
require a dosage adjustment or special monitoring during
treatment if you have any of the conditions listed above.
The Pepcid RPD orally disintegrating tablets contain
1.05 mg phenylalanine per 20 mg tablet and 2.10 mg phenylalanine
per 40 mg oral tablet. Individuals with phenylketonuria
may need to monitor their intake of this additive.
Famotidine is in the FDA pregnancy category B. This means
that it is not expected to be harmful to an unborn baby.
Do not take famotidine without first talking to your doctor
if you are pregnant or could become pregnant during treatment.
Famotidine passes into breast milk. It is not known
whether famotidine will harm a nursing infant. Do not take
this medication without first talking to your doctor if
you are breast-feeding a baby.
How should take famotidine Take famotidine exactly as directed by your doctor.
If you do not understand these instructions, ask your pharmacist,
nurse, or doctor to explain them to you.
oral dose with a full glass of water.
Chew the chewable
tablets thoroughly before swallowing.
with liquid is not necessary for the Pepcid RPD orally disintegrating
tablets. Just prior to taking a dose, peel open the blister
pack with dry hands and place the tablet on the tongue,
Where it will dissolve and be swallowed with the saliva.
Shake the Pepcid suspension vigorously for 5 to 10
seconds before measuring a dose. To ensure that you get
the correct dose, use a dose-measuring cup or spoon, not
a regular table spoon to measure a dose of the suspension.
If you do not have a dose-measuring device, ask your pharmacist
Over-the-counter famotidine is usually taken
15 minutes before consuming heartburn-inducing foods or
Do not stop taking this medication without
first talking to your doctor. It may take up to 8 weeks
for an ulcer to heal.
Store famotidine at room temperature
away from moisture and heat.
If you miss a dose: Take the missed dose as soon as you remember. However,
if it is almost time for the next dose, skip the missed
dose and take only the next regularly scheduled dose. Do
not take a double dose of this medication unless otherwise
directed by your doctor.
What happens if you overdose: Seek emergency medical attention if an overdose is
Symptoms of a famotidine overdose include
nausea, vomiting, diarrhea, increased saliva production,
difficulty breathing, and a fast heartbeat.
Avoid while taking famotidine There are no restrictions on food, beverages, or
activities while taking famotidine unless otherwise directed
by your doctor.
Possible side effects of famotidine If you experience any of the following serious side
effects, stop taking famotidine and contact your doctor
immediately or seek emergency medical treatment.
an allergic reaction (difficulty breathing; closing of the
throat; swelling of the lips, tongue, or face; or hives);
- easy or unusual bruising or bleeding;
- irregular heartbeat;
of the skin or eyes; or
- a rash.
serious side effects may be more likely to occur. Continue
to take famotidine and talk to your doctor if you experience
- headache; or
nausea, or constipation.
Side effects other than
those listed here may also occur. Talk to your doctor about
any side effect that seems unusual or that is especially
What other drugs will affect famotidine Do not take antacids within 1 hour of taking famotidine.
Antacids may decrease the effectiveness of famotidine.
may affect the actions of other medications by changing the
acidity of the stomach. Talk to your doctor and pharmacist
before taking any prescription or over-the-counter medicines
during treatment with famotidine, including herbal products.