⚠️ Warnings
Hepatic impairment. Patients with severe hepatic impairment should have their hepatic enzyme levels monitored regularly, especially during long-term treatment. If hepatic enzyme levels increase, treatment with the product should be discontinued.
Combination therapy. During combination therapy, the instructions for medical use of the respective medicinal products should be followed.
Gastric malignancy. A symptomatic response to pantoprazole may mask the symptoms of gastric malignancy and delay its diagnosis. In the presence of alarm symptoms (e.g., significant weight loss, recurrent vomiting, dysphagia, hematemesis, anemia, melena), and when gastric ulcer is suspected or confirmed, malignancy should be excluded.
If symptoms persist despite adequate treatment, further investigation should be considered.
HIV protease inhibitors. Concomitant use of pantoprazole with HIV protease inhibitors (such as atazanavir), whose absorption is dependent on intragastric pH, is not recommended due to a significant reduction in their bioavailability (see section "Interactions with other medicinal products and other forms of interaction").
Effect on vitamin B12 absorption.
Pantoprazole may reduce the absorption of vitamin B12 (cyanocobalamin) due to hypo- or achlorhydria. This should be considered in patients with reduced body weight or in those with risk factors for decreased vitamin B12 (cyanocobalamin) absorption, especially during long-term treatment or in the presence of relevant clinical symptoms.
Long-term treatment. During long-term treatment, especially for more than 1 year, patients should be kept under regular medical supervision.
Gastrointestinal bacterial infections.
Treatment with the product may slightly increase the risk of gastrointestinal infections caused by bacteria such as Salmonella and Campylobacter or C. difficile.
Hypomagnesemia. Rare cases of severe hypomagnesemia have been reported in patients treated with PPIs such as pantoprazole for at least 3 months, and in most cases for 1 year. The following serious clinical manifestations of hypomagnesemia may occur and develop insidiously: fatigue, tetany, delirium, seizures, dizziness, and ventricular arrhythmia. Hypomagnesemia may lead to hypocalcemia and/or hypokalemia (see section "Special warnings and precautions for use"). In the majority of cases of hypomagnesemia (and associated hypocalcemia and/or hypokalemia), patient condition improved following magnesium replacement therapy and discontinuation of PPI treatment.
For patients expected to be on prolonged treatment, or for patients taking PPIs concomitantly with digoxin or drugs that may cause hypomagnesemia (e.g., diuretics), magnesium levels should be measured before initiation of PPI therapy and periodically during treatment.
Bone fractures. Long-term (more than 1 year) treatment with high-dose proton pump inhibitors may moderately increase the risk of hip, wrist, and spine fractures, predominantly in elderly patients or in the presence of other risk factors. Observational studies suggest that proton pump inhibitor use may increase the overall risk of fractures by 10–40%. Some of these fractures may be attributable to other risk factors. Patients at risk of osteoporosis should receive treatment in accordance with current clinical guidelines and should have adequate intake of vitamin D and calcium.
Severe cutaneous adverse reactions (SCARs).
Severe cutaneous adverse reactions have been reported with the use of pantoprazole, including erythema multiforme, cases of Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and drug reaction with eosinophilia and systemic symptoms (DRESS syndrome), which may be life-threatening or fatal. The frequency of these reactions is not known (see section "Adverse reactions").
When prescribing pantoprazole, patients should be informed about the signs and symptoms, and they should be closely monitored for skin reactions. If symptoms suggestive of these severe cutaneous reactions appear, pantoprazole should be discontinued immediately and alternative treatment should be considered.
Subacute cutaneous lupus erythematosus. The use of proton pump inhibitors has been associated with very rare cases of subacute cutaneous lupus erythematosus. If lesions occur, especially in sun-exposed areas, and are accompanied by arthralgia, the patient should seek prompt medical attention, and the physician should consider whether discontinuation of Nolpaza® is necessary. The occurrence of subacute cutaneous lupus erythematosus during prior PPI therapy may increase the risk of its development with other proton pump inhibitors.
Effect on laboratory test results.
Elevated chromogranin A (CgA) levels may interfere with diagnostic investigations for neuroendocrine tumors. To avoid such interference, Nolpaza® therapy should be temporarily discontinued at least 5 days prior to CgA measurement (see section "Pharmacodynamics"). If CgA and gastrin levels have not returned to the normal range after the initial measurement, repeat measurements should be performed 14 days after discontinuation of PPI therapy.
Information regarding excipients.
Nolpaza® contains sorbitol. Patients with rare hereditary fructose intolerance should not use this product.