⚠️ Warnings
Hepatic impairment. Patients with severe hepatic impairment should have liver enzyme levels monitored regularly, particularly during long-term treatment. If liver enzyme levels are elevated, treatment with the medicinal product should be discontinued.
Combination therapy. During combination therapy, the prescribing information for 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 unintentional weight loss, recurrent vomiting, dysphagia, hematemesis, anemia, melena), as well as when a gastric ulcer is suspected or present, the presence of a malignant process should be excluded.
If symptoms persist despite adequate treatment, further investigation should be considered.
HIV protease inhibitors. Co-administration of pantoprazole with HIV protease inhibitors (such as atazanavir), the absorption of which 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 the presence of risk factors for reduced 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 exceeding 1 year, patients should be kept under regular medical supervision.
Gastrointestinal infections caused by bacteria.
Treatment with the medicinal 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 a 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 most cases of hypomagnesemia (and associated hypocalcemia and/or hypokalemia), patients improved after magnesium replacement therapy and discontinuation of the PPI.
Patients requiring long-term therapy or those taking PPIs concomitantly with digoxin or medicinal products that may cause hypomagnesemia (e.g., diuretics) should have magnesium levels measured before starting PPI therapy and periodically during treatment.
Bone fractures. Long-term treatment (more than 1 year) with high-dose proton pump inhibitors may moderately increase the risk of hip, wrist, and spinal fractures, predominantly in the elderly or in the presence of other risk factors. Observational studies indicate that the use of proton pump inhibitors may increase the overall risk of fractures by 10–40%. Some of these may be attributable to other risk factors. Patients at risk of developing osteoporosis should receive treatment according to current clinical guidelines and should consume adequate amounts 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 of the signs and symptoms and closely monitored for skin reactions. If symptoms suggestive of these severe cutaneous reactions appear, pantoprazole should be discontinued immediately and alternative treatment 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, particularly in sun-exposed areas of the skin, accompanied by arthralgia, the patient should promptly seek 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 affect the results of diagnostic investigations for neuroendocrine tumors. To avoid this, treatment with Nolpaza® should be temporarily discontinued at least 5 days before CgA level 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.