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Nizatidine

Nizatidine

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What is Nizatidine?

Nizatidine (Axid) is a prescription medication used to treat gastroesophageal reflux disease (GERD), stomach ulcers, and other conditions caused by excess stomach acid. As an H2 blocker, it reduces acid production to relieve heartburn, promote healing, and help prevent ulcer recurrence.

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What is Nizatidine ?

Nizatidine (Axid) is a prescription medication used to treat gastroesophageal reflux disease (GERD), stomach ulcers, and other conditions caused by excess stomach acid. As an H2 blocker, it reduces acid production to relieve heartburn, promote healing, and help prevent ulcer recurrence.

  • Unusual bleeding, bruising, or weakness
  • Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes
  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Yellowing of your skin or the whites of your eyes.
  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
  • Call your doctor if your symptoms do not improve or if they get worse.
  • Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, or stomach cancer.
  • Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.
What is nizatidine used for?
Nizatidine reduces stomach acid. It is FDA-approved to treat active duodenal and benign gastric ulcers, to keep healed duodenal ulcers from returning, and to treat GERD, including erosive esophagitis. Lower-dose over-the-counter versions were used to relieve and prevent occasional heartburn, acid indigestion, and sour stomach.
Is nizatidine the same as Zantac or Pepcid?
No, but they are related. Nizatidine, famotidine (Pepcid), and ranitidine (the original Zantac) are all H2 blockers that lower stomach acid, so they work in a similar way. They are different individual medicines, however, and are not interchangeable. Your prescriber can advise which one fits your situation.
Was nizatidine recalled over NDMA?
Yes. In 2020, the FDA announced recalls of specific nizatidine products found to contain the NDMA nitrosamine impurity above acceptable limits: Mylan recalled several lots of nizatidine capsules in January 2020, and Amneal recalled nizatidine oral solution (15 mg/mL) on April 16, 2020. This was part of the same broader nitrosamine issue that led ranitidine (Zantac) to be withdrawn from the U.S. market. Marketed nizatidine is now subject to FDA nitrosamine limits; if you have an older batch, ask your pharmacist and check current FDA guidance.
What are the most common side effects of nizatidine?
The most common side effects are headache, dizziness, diarrhea, constipation, and drowsiness. Rarer effects can include reversible liver enzyme elevations, low platelet counts, and confusion, especially in older adults or people with kidney impairment. Contact your doctor if side effects concern you.
Is nizatidine available over the counter?
Lower-dose nizatidine was previously sold over the counter as Axid AR for occasional heartburn, but those brand products are largely discontinued in the U.S. Today nizatidine is mainly dispensed as a generic prescription. Ask your pharmacist about current availability.
How much does Nizatidine 150MG cost without insurance?
The price of Nizatidine 150MG without insurance varies by pharmacy, dosage, and quantity. Rx.com compares cash prices at more than 60,000 US pharmacies so you can find the lowest price near you. Many people save 60–90% off retail prices with a free Rx.com coupon.
What are the common side effects of Nizatidine 150MG?
Common side effects of Nizatidine 150MG may include: Unusual bleeding, bruising, or weakness, Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes, Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing, Yellowing of your skin or the whites of your eyes.. This is not a complete list — consult your pharmacist or doctor for full side effect information.
Is there a generic version of Nizatidine 150MG?
Generic versions may be available for Nizatidine 150MG. Generics contain the same active ingredients as brand-name drugs and are typically 80–90% cheaper. Search Nizatidine 150MG on Rx.com to compare generic and brand prices at pharmacies near you.
What is the cheapest pharmacy for Nizatidine 150MG?
The cheapest pharmacy for Nizatidine 150MG depends on your location and dosage. Rx.com compares prices at CVS, Walgreens, Walmart, Kroger, Costco, and thousands of independent pharmacies. Enter your ZIP code on Rx.com to find the lowest price for Nizatidine 150MG near you.

Nizatidine Coupons & Prices

Nizatidine

Prescriptions & Refills
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Nizatidine Capsule — prescription drug image
Prescription
Nizatidine 150mg (14)
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Looking for a nizatidine coupon? Nizatidine is a generic H2 blocker that lowers stomach acid, and because it is generic it is already one of the lower-cost prescription options for ulcers and GERD. Even so, the cash price can vary a lot from one pharmacy to the next, so comparing before you fill matters. Rx.com checks nizatidine prices across more than 60,000 pharmacies so you can find today's best cash price near you. Enter your ZIP above to see today's price and print or text yourself a free discount coupon.

What is nizatidine and how does it work?

Nizatidine is a histamine H2-receptor antagonist, commonly called an H2 blocker. It works by reducing the amount of acid the stomach makes. It was sold under the brand names Axid and Axid AR, both of which are now largely discontinued in the U.S., so today it is dispensed almost entirely as the generic.

Nizatidine is FDA-approved to treat active duodenal ulcers and benign gastric (stomach) ulcers, to help keep healed duodenal ulcers from coming back, and to treat gastroesophageal reflux disease (GERD), including erosive esophagitis. Older lower-dose formulations were sold over the counter to relieve and prevent occasional heartburn, acid indigestion, and sour stomach.

Nizatidine cost without insurance and how to save

As a generic, nizatidine is already an affordable medication, and it does not have a manufacturer copay savings card. The catch is that pharmacies set their own cash prices, and those prices can differ widely across town for the exact same prescription. That is why comparing pharmacies is the single best way to keep your cost down, whether or not you have insurance.

With Rx.com there is no membership fee. Enter your ZIP above to see today's price at pharmacies near you, then bring the free coupon to the counter. The discount price is often useful even if you have insurance, because a cash coupon can sometimes beat your copay. Prices change, so always check the live price on this page before you fill.

Nizatidine vs. other acid reducers

Nizatidine is one of several H2 blockers. If your provider has you comparing options, related medications include famotidine and cimetidine, which are also H2 blockers, and ranitidine, an older H2 blocker that was withdrawn from the U.S. market. For stronger or longer-lasting acid suppression, some people are prescribed a proton pump inhibitor instead, such as omeprazole or pantoprazole.

These drugs are not interchangeable, and the right choice depends on your diagnosis and history. Use the links to compare live prices on each, but let your prescriber decide which medication and dose is right for you.

Safety and side effects

Nizatidine has no boxed warning and is generally well tolerated. The most common side effects are headache, dizziness, diarrhea, constipation, and drowsiness. Less common but notable reactions can include reversible liver enzyme elevations, low platelet counts (thrombocytopenia), and confusion, which is more likely in older adults or people with reduced kidney function. If you have kidney impairment, your doctor may lower your dose.

Because nizatidine raises stomach pH, it can mask symptoms of a more serious stomach condition and can change how some other medications are absorbed. Nizatidine belongs to the H2-receptor antagonist (H2 blocker) class, the same class as ranitidine, which was withdrawn from the U.S. market over an NDMA nitrosamine impurity. In 2020, specific nizatidine products were also recalled for NDMA: Mylan recalled several lots of nizatidine capsules in January 2020, and Amneal recalled nizatidine oral solution (15 mg/mL) on April 16, 2020. Marketed nizatidine today is subject to FDA nitrosamine limits, but if you have a batch from that period, ask your pharmacist and check current FDA guidance. Nizatidine should be used with caution during pregnancy and breastfeeding. This information is not medical advice; talk with your doctor or pharmacist about your full medication list and any conditions before starting or stopping nizatidine.

Sources & accuracy

This Nizatidine information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.

Verify the official label: Nizatidine on DailyMed (FDA)

Reviewed against FDA labeling · Last reviewed July 2026

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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.


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