upset stomach
headache
diarrhea
constipation
stomach pain
cough
mild rash
back, neck, or joint pain
If you experience any of the following symptoms, call your doctor immediately:

chest pain
difficulty breathing or swallowing
itching
weakness
rash or hives
severe skin rash with swelling and peeling
swollen face, lower legs, or ankles
vision changes
vomiting
yellowing of skin or eyes
fever
confusion
slow movements
speech problems
increased salivation
difficulty maintaining balance
ringing in the ears
sinus or upper respiratory tract infection
Pantoprazole may cause hyperglycemia (high blood sugar). If you have any of the following symptoms of hyperglycemia, call your doctor immediately:

thirst
dry mouth
tiredness
flushing
dry skin
frequent urination
lost of appetite
trouble breathing

What storage conditions are needed for Protonix?

Keep Pantoprazole in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medication that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medication.

What other information should I know?

Protonix may interfere with some laboratory tests for cholesterol and kidney function. If you are scheduled for any laboratory tests, tell your doctor that you take Protonix.

Keep all appointments with your doctor and the laboratory. Your doctor may order certain lab tests to check you response to Pantoprazole.

Do not let anyone else take your medicine. Ask your pharmacist any questions you have about refilling your prescription.

Protonix : Full Prescribing Information