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Drugs reference index «Axid»


Generic name: NizatidineBrand names: Axid

Why is Axid prescribed?

Axid is prescribed for the treatment of duodenal ulcers and noncancerous stomach ulcers. Full-dose therapy for these problems lasts no longer than 8 weeks. However, your doctor may prescribe Axid at a reduced dosage after a duodenal ulcer has healed. The drug is also prescribed for the heartburn and the inflammation that result when acid stomach contents flow backward into the esophagus. Axid belongs to a class of drugs known as histamine H2 blockers.

Most important fact about Axid

Although Axid can be used for up to 8-12 weeks, most ulcers are healed within 4 weeks of therapy.

How should you take Axid?

Take Axid exactly as prescribed by your doctor.

  • If you miss a dose...Take it as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Do not take 2 doses at once.
  • Storage instructions...Store at room temperature.

What side effects may occur?

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Axid.

  • Side effects may include:Abdominal pain, diarrhea, dizziness, gas, headache, indigestion, inflammation of the nose, nausea, pain, sore throat, vomiting, weakness

Why should Axid not be prescribed?

If you are sensitive to or have ever had an allergic reaction to Axid or similar drugs such as Zantac, you should not take Axid. Make sure your doctor is aware of any drug reactions you have experienced.

Special warnings about Axid

Axid could mask a stomach malignancy. If you continue to have any problems, notify your doctor.

If you have moderate to severe kidney disease, your doctor will reduce your dosage.

This drug has not been studied in children.

Possible food and drug interactions when taking Axid

If Axid is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Axid with aspirin, especially in high doses.

Special information if you are pregnant or breastfeeding

The effects of Axid during pregnancy have not been adequately studied. If you are pregnant or plan to become pregnant, inform your doctor immediately.

Axid appears in breast milk and could affect a nursing infant. If Axid is essential to your health, your doctor may advise you to discontinue breastfeeding until your treatment with Axid is finished.

Recommended dosage for Axid


Active Duodenal Ulcer:

The usual dose is 300 milligrams once a day at bedtime, but your doctor may have you take 150 milligrams twice a day.

Active Noncancerous Stomach Ulcer:

The usual dose is 150 milligrams twice a day or 300 milligrams once a day at bedtime.

Maintenance of a Healed Duodenal Ulcer:

The usual dose is 150 milligrams once a day at bedtime.

If you have moderate to severe kidney disease, your doctor will prescribe a lower dose.


No specific information on Axid overdose is available. However, any medication taken in excess can have serious consequences. If you suspect an overdose of Axid, seek medical attention immediately.

  • Axid Prescribing Information (FDA)
  • Axid Consumer Overview
  • Axid MedFacts Consumer Leaflet (Wolters Kluwer)
  • Nizatidine Prescribing Information (FDA)
  • Nizatidine Professional Patient Advice (Wolters Kluwer)
  • Axid AR Prescribing Information (FDA)

See Also...

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