Pepcid AC (Oral)

Pepcid AC is in a group of drugs called histamine-2 blockers. It works by reducing the amount of acid the stomach produces (Example- Zollinger-Ellison syndrome), treats and prevent ulcers in the stomach and intestines and treats gastroesophageal reflux disease (GERD) and other conditions in which acid backs up from the stomach into the esophagus, causing heartburn. THe most common side effect of Pepcid AC is headache, however this happens infrequently. Heartburn can be confused with early symptoms of heart attack. Call 911 if you have chest pain or heavy feeling, dizziness, pain spreading to the arm or shoulder, sweating, nausea or vomiting, and a general ill feeling. Pepcid AC can also be given to you dog if they are experiencing vomiting. Designed as an antacid, it reduces the acid secretion in the stomach, which alleviates discomfort and nausea.

Questions | Reviews

Does Pepcid destroy to much stomach acid for my B-12 supplement to absorb?

I'm taking 10mg. of Pepcid daily. I also take a B-12 supplement. How far apart should I take my B-12 to ensure there is enough acid in my stomach for my B-12 to absorb properly?
by Delilah Lee Dalton in Lisle,Illinois USA, 08/22/2014

how long does it take for pepcid ac to start working once ingested

How long does it take for pepcid ac to begin working,once ingested.
by darold buskirk in bakersfield,ca, 09/08/2007

is excessive amounts of pepcid ac complete bad for me?

i am an asian ameriacan and when i consume alcohol i turn red. Someone told me that if i took 5 or 6 tablets of pepcid ac complete that i woulndn't get as red and i wouldn't suffer from any other of the minor symptoms i get when i drink, such ...
by jackie in Hawaii, 08/17/2006

Pepcid AC (Oral) Drug and Prescription Information

Pepcid AC (Oral)

Pepcid AC (Oral) Medication Classification


Pepcid AC (Oral) Brandname

Pepcid, Pepcid AC, Heartburn Relief

Pepcid AC (Oral) is used for the Treatment

Famotidine (fa-MOE-ti-deen) Treats stomach ulcers, gastroesophageal reflux disease (GERD), and conditions that cause the stomach to produce too much stomach acid. Also treats or prevents heartburn and caused by acid indigestion.

When To Not Use Pepcid AC (Oral)

You should not use this medicine if you have ever had an allergic reaction to famotidine or to similar medicines such as ranitidine (Zantac®), cimetidine (Tagamet®), or nizatidine (Axid®).

How Should You Use Pepcid AC (Oral)

Tablet, Chewable Tablet, Dissolving Tablet, Liquid

  • Your doctor will tell you how much of this medicine to take and how often. Do not take more medicine or take it more often than your doctor tells you to.
  • If you are using this medicine without a prescription, follow the instructions on the medicine label. Do not use the medicine every day for longer than 2 weeks without asking your doctor.
  • For treating ulcers, this medicine is usually taken only at bedtime. For preventing heartburn, take the medicine 15 minutes to 1 hour before you eat or drink anything that may cause heartburn. Do not use the medicine more than two times in one day unless your doctor tells you otherwise.
  • Swallow the tablet whole with a glass of water. The chewable tablet must be chewed completely before you swallow it.
  • To use the disintegrating tablets, open the tablet blister pack with dry hands. Put the tablet on your tongue and let it dissolve. Then swallow the medicine with your saliva. No water is needed.
  • Shake the oral liquid medicine for 5 to 10 seconds before each use. Measure the medicine with a marked measuring spoon or medicine cup.
  • If a dose is missed:
  • If you miss a dose or forget to take your medicine, take it as soon as you can. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose.
  • Do not use extra medicine to make up for a missed dose.

Proper Pepcid AC (Oral) Storage

Store Pepcid AC (Oral) at room temperature away from sunlight and moisture unless otherwise stated by manufacturer's instructions or labelling. Keep Pepcid AC (Oral) and all medications out of the reach of children.

What To Avoid While Using Pepcid AC (Oral)

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • Make sure your doctor knows if you are also taking itraconazole (Sporanox®) or ketoconazole (Nizoral®). Ask your doctor before using antacids or other acid reducers (Axid®, Tagamet®, Zantac®) while you are taking famotidine.
  • Avoid smoking and drinking alcohol. These things can make your stomach produce extra acid and may keep the medicine from working properly.

Pepcid AC (Oral) Warnings

  • Make sure your doctor knows if you are pregnant or breastfeeding, or if you have kidney disease, or phenylketonuria (PKU).
  • Do not give this medicine to anyone under the age of 16 without a doctor's approval.

Pepcid AC (Oral) Side Effects

Call your doctor right away if you notice any of these side effects:

  • Allergic reaction: Itching or hives, swelling in face or hands, swelling or tingling in the mouth or throat, tightness in chest, trouble breathing
  • Dark-colored urine or pale stools
  • Fast, slow, or irregular heartbeat
  • Ongoing stomach pain
  • Trouble swallowing
  • Unusual bleeding or bruising
  • Yellow skin or eyes
  • If you notice these less serious side effects, talk with your doctor:
  • Constipation, diarrhea, nausea, vomiting, stomach upset
  • Headache, dizziness
  • Joint or muscle pain
  • Tiredness or trouble sleeping

Pepcid AC (Oral) Ratings

Overall Rating:



(based on 0 reviews)


Ease of Use:

Overall Satisfaction:



Sure is quiet in here. You can write the first review of Pepcid AC (Oral).