Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.

The side effects listed below are not experienced by everyone who takes this medication. If you are concerned about side effects, discuss the risks and benefits of Axid (Nizatidine) with your doctor.

The following side effects have been reported by at least 1% of people taking this medication. Many of these side effects can be managed, and some may go away on their own over time.

Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.

• Diarrhea
• dizziness
• drowsiness
• Dry Mouth
• headache
• increased sweating
• itching
• nausea

Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not seek medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

• fast or irregular heartbeat
• skin rash or Hives
• symptoms of liver problems:
• abdominal pain
• fatigue
• flu-like symptoms
• light coloured stools
• nausea
• vomiting
• yellowing of the skin or eyes

Stop taking the medication and seek immediate medical attention if any of the following occur:

• symptoms of an allergic reaction:
• swelling of the hands, feet, ankles, face, lips, mouth, or throat
• difficulty breathing or swallowing

Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking this medication.

150 mg
Each opaque yellow capsule imprinted "AXID" over "3144" on one half and "AXID" over "150 mg" on the other half contains 150 mg of Axid (Nizatidine). Nonmedicinal ingredients: corn starch, magnesium stearate, silicone, iron oxide yellow, titanium dioxide, and gelatin.

300 mg
Each capsule with opaque brown cap and opaque yellow body, imprinted with "AXID" over "300" on one half and "AXID" over "3145" on the other contains 300 mg of Axid (Nizatidine). Nonmedicinal ingredients: corn starch, povidone, carboxymethyl cellulose, sodium, silicone, talc, iron oxide red, iron oxide yellow, titanium dioxide, and gelatin.

Do not take Axid (Nizatidine) if you:

• are allergic to Axid (Nizatidine) or to any of the ingredients of the medication
• are allergic to any H2-receptor antagonists (e.g., Ranitidine, Famotidine, Cimetidine)

There may be an interaction between Axid (Nizatidine) and any of the following:

• acetylsalicylic acid (Asa)
• "azole" antifungals (e.g., itraconazole, ketoconazole, Voriconazole)
• Bosutinib
• cefuroxime
• Cyclosporine
• Dasatinib
• delavirdine
• dexmethylphenidate
• Erlotinib
• Gefitinib
• HIV protease inhibitors (e.g., atazanavir, indinavir, ritonavir, saquinavir)
• iron supplements
• ledipasvir
• Mesalamine
• Methylphenidate
• multivitamin/mineral supplements
• Nilotinib
• Pazopanib
• rilpivirine
• Risedronate
• secretin
• Varenicline
• velpatasvir

If you are taking any of these medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to:

• stop taking one of the medications,
• change one of the medications to another,
• change how you are taking one or both of the medications, or
• leave everything as is.

An interaction between two medications does not always mean that you must stop taking one of them. Speak to your doctor about how any drug interactions are being managed or should be managed.

Medications other than those listed above may interact with Axid (Nizatidine). Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the Nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.

Before you begin taking a medication, be sure to inform your doctor of any medical conditions or Allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use Axid (Nizatidine).

Kidney function: Axid (Nizatidine) is removed from the body by the kidneys. If you have reduced kidney function, discuss with your doctor how Axid (Nizatidine) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.

Liver function: Axid (Nizatidine) is partly broken down by the liver. If you have reduced liver function, discuss with your doctor how Axid (Nizatidine) may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.

Severe stomach problems: If you have recurrent vomiting, difficulty swallowing, blood in the stool, significant unintentional weight loss, fatigue (Anemia), or are coughing up blood, check with your doctor right away.

Vitamin B12: Long-term use of Axid (Nizatidine) may lead to vitamin B12 deficiency. If you are a vegetarian or have low vitamin B12 levels, discuss with your doctor whether any special monitoring is required.

Pregnancy: Axid (Nizatidine) should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking Axid (Nizatidine), contact your doctor immediately.

Breast-feeding: Axid (Nizatidine) passes into breast milk. If you are a breast-feeding mother and are taking Axid (Nizatidine), it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.

Children: The safety and effectiveness of using Axid (Nizatidine) have not been established for children.