What is this medication for?

Nizatidine belongs to the family of medications called H2-receptor antagonists. Nizatidine works by reducing the amount of acid secreted by the stomach. Reducing the acid helps to reduce the pain of ulcers and heartburn and to assist in the healing of ulcers and damage caused by gastroesophageal reflux disease. Nizatidine is also used to prevent duodenal ulcers in certain circumstances.

Your doctor may have suggested this medication for conditions other than those listed here. As well, some forms of this medication may not be used for all of the conditions discussed here. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it. Do not stop taking this medication without consulting your doctor.

What form(s) does this medication come in?

Axid® AR by Wyeth is available as:

• tablets
  • 75 mg

Some medications may have other generic brands available. Always ask your doctor or pharmacist about the safety of switching between brands of the same medication.

How should I use this medication?

The adult dose of nizatidine ranges from 150 mg daily for prevention of ulcers to 300 mg daily (either 150 mg twice a day or 300 mg at bedtime) for treatment of ulcers and healing of damage caused by gastroesophageal reflux disease. Nizatidine may be taken with or without food. Antacids may be used along with nizatidine if extra relief from excess acid is needed.

It is important that this medication be taken exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one.

Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

Store this medication at room temperature, protect it from light and moisture, and keep it out of the reach of children.

Who should NOT take this medication?

Nizatidine should not be taken by people who are allergic to nizatidine or any ingredients of the medication or any H2-receptor antagonists (e.g., ranitidine, famotidine, cimetidine).