What role does aspirin's effect on prostaglandins cause stomach discomfort?

Why does aspirin cause stomach discomfort?

Aspirin blocks COX-1 enzymes, stopping cells from producing prostaglandins that protect the stomach lining. Without these lipids, the stomach loses its mucus layer, bicarbonate, and blood flow, allowing acid to irritate or ulcerate tissue.

Can aspirin trigger ulcers directly?

Yes. Reduced prostaglandin levels thin the protective mucus and weaken blood supply to the stomach wall. Acid and pepsin then erode the exposed surface, creating ulcers that can bleed or perforate.

What pain relief alternatives avoid stomach issues?

Acetaminophen works through different pathways and does not inhibit COX-1 in the stomach. Ibuprofen and naproxen also affect prostaglandins but may cause less disruption at lower doses. Enteric-coated aspirin versions delay release into the small intestine, reducing direct contact with the stomach surface.

When does stomach discomfort appear after aspirin use?

Discomfort can surface after a few days of regular use. Longer exposure increases risk of ulceration and bleeding, especially in older adults and those already with gastric issues.

What happens when aspirin meets food?

Taking aspirin with food temporarily buffers acid and distributes the drug across a larger volume. This does not eliminate risk but lowers immediate irritation compared with taking es