⚠️ Warnings
Hepatic impairment. Hepatic enzyme levels should be monitored regularly in patients with severe hepatic impairment, particularly during long-term treatment. Treatment should be discontinued if hepatic enzyme levels are elevated.
Combination therapy. When combination therapy is prescribed, the prescribing information for the co-administered medicinal products should be followed.
Gastric malignancy. The 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, haematemesis, anaemia, melaena) and when gastric ulcer is suspected or present, malignancy 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) whose absorption is dependent on intragastric pH is not recommended due to a significant reduction in their bioavailability (see section "Interaction 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 risk factors for decreased vitamin B₁₂ (cyanocobalamin) absorption, especially during long-term treatment or in the presence of relevant clinical symptoms.
Long-term treatment. Patients on long-term treatment, especially exceeding 1 year, should be kept under regular medical supervision.
Gastrointestinal infections caused by bacteria.
Treatment may slightly increase the risk of gastrointestinal infections caused by bacteria such as Salmonella, Campylobacter, or C. difficile.
Hypomagnesaemia. Rare cases of severe hypomagnesaemia have been reported in patients treated with PPIs such as pantoprazole for at least 3 months, and in most cases for 1 year. Serious clinical manifestations of hypomagnesaemia, which may develop insidiously, include fatigue, tetany, delirium, convulsions, dizziness, and ventricular arrhythmia. Hypomagnesaemia may lead to hypocalcaemia and/or hypokalaemia (see section "Special warnings and precautions for use"). In patients with hypomagnesaemia (and associated hypocalcaemia and/or hypokalaemia), improvement was observed in most cases following magnesium replacement therapy and discontinuation of the PPI.
In patients expected to require prolonged therapy, or in those taking PPIs concomitantly with digoxin or other medicinal products that may cause hypomagnesaemia (e.g. diuretics), magnesium levels should be determined before initiating PPI therapy and periodically during treatment.
Bone fractures. Long-term treatment (exceeding 1 year) with high-dose PPIs 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 PPIs may increase the overall risk of fractures by 10–40%. Some of these may be attributable to other risk factors. Patients at risk of osteoporosis should receive treatment according to 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 pantoprazole, including erythema multiforme, 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").
Patients should be advised of the signs and symptoms when prescribing pantoprazole, and should be closely monitored for cutaneous 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. PPI use has been associated with very rare cases of subacute cutaneous lupus erythematosus. If lesions occur, especially in sun-exposed areas of the skin, accompanied by arthralgia, the patient should promptly seek medical attention, and the prescriber should consider whether Nolpaza® should be discontinued. The occurrence of subacute cutaneous lupus erythematosus during previous PPI therapy may increase the risk of its development with other PPIs.
Effect on laboratory test results.
Elevated chromogranin A (CgA) levels may interfere with diagnostic investigations for neuroendocrine tumours. To avoid such interference, Nolpaza® treatment should be temporarily discontinued at least 5 days before CgA level assessment (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 take this medicinal product.