What are side effects of pantoprazole
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Side Effects of Pantoprazole
Pantoprazole, a proton-pump inhibitor (PPI), is widely used for treating acid-related disorders such as gastroesophageal reflux disease (GERD), peptic ulcer disease, and Zollinger-Ellison syndrome. Despite its efficacy, pantoprazole can cause several side effects, ranging from mild to severe.
Common Side Effects: Headaches, Diarrhea, and Abdominal Pain
Pantoprazole is generally well-tolerated, but common side effects include headaches, diarrhea, flatulence, and abdominal pain1. These side effects are usually mild and transient, resolving without the need for medical intervention.
Hypersensitivity Reactions: Urticaria and Anaphylaxis
Hypersensitivity reactions to pantoprazole, although rare, can be severe. Cases of urticaria, angioedema, and anaphylactic shock have been reported. For instance, a 41-year-old woman experienced generalized itching, urticaria, angioedema, and low blood pressure after taking pantoprazole1. Another case involved a 42-year-old woman who developed numbness of the tongue, itching, and difficulty breathing immediately after pantoprazole infusion3. These reactions necessitate immediate medical attention and discontinuation of the drug.
Severe Adverse Reactions: Acute Interstitial Nephritis and Edema
Pantoprazole has been associated with acute interstitial nephritis, a condition characterized by inflammation of the kidneys. A 23-year-old man developed acute renal failure requiring renal replacement therapy after six weeks of pantoprazole treatment8. Additionally, cases of reversible edema have been documented, particularly in patients receiving parenteral pantoprazole9.
Potential for Hematologic and Electrolyte Abnormalities
In hospitalized patients, pantoprazole has been linked to hematologic and electrolyte abnormalities. A retrospective study in ruminants observed hypomagnesemia and changes in serum indicators of hepatic and renal function after pantoprazole administration5. Although these changes were not clinically significant, they highlight the need for monitoring in vulnerable populations.
Increased Mortality in Severely Ill ICU Patients
A post hoc analysis of the SUP-ICU trial suggested that pantoprazole might increase 90-day mortality in the most severely ill ICU patients. The study found potential heterogeneous treatment effects, with higher risks of serious adverse events in patients with greater illness severity or more risk factors for clinically important gastrointestinal bleeding4.
Conclusion
While pantoprazole is effective for managing acid-related disorders, it is not without risks. Common side effects include headaches, diarrhea, and abdominal pain, while severe reactions such as anaphylaxis, acute interstitial nephritis, and edema can occur. Healthcare providers should be vigilant in monitoring patients, especially those with severe illnesses or multiple risk factors, to mitigate these risks.
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