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Updated March 06, 2008

Generic Name:

  • Nizatidine
Brand Name:
  • Axid
  • Axid AR
  • Axid AR Acid Reducer
  • Axid Pulvules
Axid is available in both prescription and over-the-counter forms.

Why Is Axid Prescribed?

Axid is in a class of medications called H2 Blockers. It decreases the amount of acid made in the stomach. It is used to treat peptic ulcers (along with antibiotics) and prevent recurrence, to treat occasional heartburn, acid indigestion or sour stomach. Many doctors only prescribe prescription-strength H2 Blockers for the treatment of ulcer and esophagitis symptoms, and have their patients use over-the-counter forms for relief of symptoms of GERD, acid indigestion, and sour stomach.

Precautions to Follow

  • Tell your doctor and pharmacist if you are allergic to Axid or any other drugs.

  • Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while taking Axid, call your doctor.

  • Tell your doctor if you have or have ever had liver or kidney disease.

  • Tell your doctor and pharmacist what prescription and nonprescription medications or vitamins you are taking.

What if You Forget a Dose?

Consult your physician before taking a missed dose. Your doctor will be able to determine if it is safe to do so, or if you should wait until your next scheduled dose. Do not take a double dose to make up for a missed one.

Possible Side Effects of Axid

Axid may cause some side effects. For most people experiencing side effects, they usually disappear after a few doses. If, however, any of the following symptoms are severe or do not go away, call your doctor:
  • Headache
  • Dizziness
  • Drowsiness
  • Runny nose
  • Sneezing
  • Coughing
  • Constipation
  • Diarrhea
  • Stomach pain
  • Sweating
Some side effects can be serious. The following symptoms are uncommon, but if you experience any of them, call your doctor immediately:
  • Skin rash
  • Hives
  • Itching
  • Wheezing
  • Difficulty breathing
Call your doctor at any time if you experience any unusual problems while taking this medication.

Storage Conditions Needed for Axid

Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.


"Understanding Some of the Medications Often Prescribed for GERD & Ulcers." Common GI Problems: Volume 1. American College of Gastroenterology. 24 Apr 2007

Kenneth R. DeVault M.D., F.A.C.G., and Donald O. Castell M.D., M.A.C.G., "Updated Guidelines for the Diagnosis and Treatment of Gastroesophageal Reflux Disease." doi: 10.1111/j.1572-0241.2005.41217.x. American College of Gastroenterology. 24 Apr 2007

"Effectiveness of Therapies for GERD" American College of Gastroenterology. 24 Apr 2007

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  1. About.com
  2. Health
  3. Heartburn/GERD
  4. Meds / Remedies
  5. H2 Blockers
  6. Axid - H2 Blocker - Treatment for Acid Reflux

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