Why is omeprazole used for lung disease?

Omeprazole, a proton pump inhibitor, is primarily used to reduce stomach acid production, but it can also be beneficial for lung disease, particularly in cases of aspiration pneumonia or chronic cough related to gastroesophageal reflux disease (GERD). By decreasing acid reflux, omeprazole can help prevent aspiration of acidic contents into the lungs, which can exacerbate respiratory issues. Additionally, managing acid reflux may improve overall lung function and reduce symptoms in patients with lung-related complications.