What side effects can this medication cause?
If you experience any of the following serious side effects, stop taking nizatidine and call your doctor immediately or seek emergency medical treatment:
an allergic reaction (difficulty breathing, closing of your throat, swelling of your lips, tongue, or face, or hives)
easy or unusual bruising or bleeding
bleeding gums
irregular heartbeat
fever and sore throat
yellowing of the skin or eyes
Other, less serious side effects may be more likely to occur. Continue to take nizatidine and talk to your doctor if you experience:
dizziness
headache
diarrhea, nausea, or constipation
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.
Why is this medication prescribed?
Dosage and using this medicine
What special precautions should I follow?
What should I do if I forget a dose?