Could Your Prescription Contribute to Heartburn?
July 31, 2000 -- About three out of five Americans have heartburn once in a while. One in five has heartburn once a month, and about one in 14 has heartburn every day. Physicians speak of heartburn by a more formal name: reflux.
This burning sensation under the breastbone occurs when the valve at the bottom of the esophagus or food pipe doesn't work properly, and the stomach acid backs up into the tube. This irritates the lining of the esophagus and may lead to significant problems.
It used to be thought that heartburn was a relatively mild condition that could be controlled by antacids and simple changes in posture and diet. Recent studies have shown that prolonged, severe heartburn is a significant risk factor for esophageal cancer.
A recent study shows that several commonly used prescription drugs promote heartburn and may contribute to the increasing number of people with esophageal cancer by relaxing the valve at the bottom of the esophagus and allowing the stomach acid to back up. These drugs include nitrates, which are commonly used for chest pain; beta-agonists, most commonly used for asthma; and benzodiazepines, often used as tranquilizers. Daily, long-term users of these drugs are about four times more likely than non-users to develop a form of esophageal cancer, according to a study published in the August issue of the Annals of Internal Medicine.
"In this paper, we discuss one possible reason for the rapid increase in [cancer] of the esophagus in Western populations," lead researcher Jesper Lagergren, MD, PhD, tells WebMD. "However, I would not say that people should stop taking these medications. Often, they are using them for very good reasons." Lagergren is a researcher in the department of medical epidemiology at the Karolinska Institute and a surgeon at Danderyd Hospital, both in Stockholm, Sweden.
"Esophageal cancer wasn't common 20 years ago," says Glenn Eisen, MD, MPH, who wrote an accompanying editorial. "It is still not very common, but it is increasing, particularly among white males. This study gives us additional information about risks; it is another piece of the puzzle that may help explain why there's more of this disease today." Eisen is associate professor of medicine and chief of endoscopy at Vanderbilt University Medical Center in Nashville, Tenn.