Nonsteroidal Anti-inflammatory Drugs and Ulcers (cont.)
Omudhome Ogbru, PharmD
Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.
In this Article
- What are nonsteroidal anti-inflammatory drugs (NSAIDs)?
- What are the side effects of NSAIDs?
- How do NSAIDs work and how do they cause stomach problems?
- If a stomach ulcer is detected, how is it treated?
- Can NSAID-related ulcers and complications be prevented?
How do NSAIDs work and how do they cause stomach problems?
Prostaglandins are natural chemicals that serve as messengers to promote inflammation. By inhibiting the body's production of prostaglandins, NSAIDs decrease inflammation and the symptoms and signs of inflammation, such as pain, tenderness, and fever. However, certain prostaglandins also are important in protecting the stomach lining from the corrosive effects of stomach acid as well as playing a role in maintaining the natural, healthy condition of the stomach lining. These protective prostaglandins are produced by an enzyme called Cox-1. By blocking the Cox-1 enzyme and disrupting the production of prostaglandins in the stomach, NSAIDs can cause ulcers and bleeding. Some NSAIDs have less effect on prostaglandins in the stomach than others, and, therefore, may have a lower risk of causing ulcers but the increased risk of ulcers still exists.
If a stomach ulcer is detected, how is it treated?
Treatment of NSAID-induced ulcers involves discontinuing the NSAID, reducing stomach acid with H2-blockers, for example, ranitidine (Zantac), cimetidine (Tagamet), famotidine (Pepcid), and nizatidine (Axid, Axid AR), or, more effectively, with proton pump inhibitors, such as omeprazole (Prilosec) or synthetic prostaglandins, specifically misoprostol (Cytotec). Since H. pylori bacteria is a common cause of ulcers, eradication of the bacteria with a combination of antibiotics also may promote ulcer healing.
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