Proton Pump Inhibitor–Associated Chronic Cough
Pantoprazole can be associated with cough as an adverse event, but cough due to pantoprazole is uncommon. [1] Chronic cough is more commonly caused by other etiologies such as upper airway cough syndrome, cough-variant asthma, or gastroesophageal reflux disease (GERD), with response to empiric proton pump inhibitor therapy that is variable. [2], [3]
Evidence for Pantoprazole Causing Cough
The pantoprazole safety database reports “cough increased” as a treatment-emergent adverse event. [1]
GERD-Related Chronic Cough Versus Drug-Induced Cough
GERD can cause chronic cough through reflux-related airway/esophageal reflex mechanisms. [2] Proton pump inhibitor treatment for chronic cough associated with GERD shows inconsistent benefit across studies. [3]
Clinical Assessment for Possible Pantoprazole-Associated Cough
Cough temporally linked to pantoprazole initiation or dose changes supports a possible drug association. [1] Alternative and more common chronic cough causes should be evaluated because chronic cough due to GERD is common and PPI response is variable. [2], [3]
Management of Suspected Pantoprazole-Associated Cough
If cough is suspected to be related to pantoprazole, clinical management typically involves reassessing the need for pantoprazole and addressing more common chronic cough causes. [2] Reevaluation is warranted because PPI benefit for GERD-related chronic cough is inconsistent. [3]
Escalation Triggers for Medical Evaluation
Medical evaluation is warranted when chronic cough persists despite appropriate empiric management or when red flags for serious pulmonary disease are present, since chronic cough requires an etiologic assessment. [2]
Summary of Likelihood
Pantoprazole-associated cough is possible but appears to be an uncommon adverse event based on available safety data. [1] GERD-related cough or other common chronic cough etiologies are more frequent explanations for chronic cough in clinical practice, with variable response to proton pump inhibitors. [2], [3]