Pantoprazole oral tablet comes with several warnings.

Though it’s rare, pantoprazole can cause an allergic reaction. Symptoms may include rash, swelling, and breathing problems.

This allergic reaction can progress to interstitial nephritis, a kidney disorder that can lead to kidney failure. Symptoms of this condition include:

If you experience any of these symptoms, call your doctor right away. If your symptoms seem severe or life threatening, go to an emergency room or call 911.

For people with osteoporosis: Pantoprazole can increase a person’s risk for osteoporosis, a condition that causes bones to become brittle. Tell your doctor if you have a history of osteoporosis.

For people with hypomagnesemia (low blood level of magnesium): Pantoprazole can decrease the amount of magnesium in your body. Tell your doctor if you have a history of hypomagnesemia.

For people being tested for neuroendocrine tumors: Pantoprazole can cause incorrect results in tests for neuroendocrine tumors. For this reason, your doctor will have you stop taking this drug at least 14 days before you have this testing. They may also have you repeat the testing if needed.

Pregnant people: If you’re pregnant or plan to become pregnant, speak with your doctor about this drug.

Studies of the drug in pregnant animals have shown risk of harm to the fetus. There aren’t enough studies of pregnant people to show that the drug poses a risk of harm to a human fetus.

Those who are breastfeeding: Pantoprazole may pass through breast milk and could be passed to a child who is breastfed. Talk with your healthcare professional about other treatment options while breastfeeding.

For children: Pantoprazole is sometimes used for short-term treatment of erosive esophagitis in children ages 5 years and older. This condition is associated with gastroesophageal reflux disease (GERD). It causes irritation and damage to the throat from stomach acid. Your child’s doctor will provide the correct dosage of pantoprazole for this use.