News Health & Medicine Do acid blockers let microbes reach the colon? By Nathan Seppa October 17, 2006 at 12:59 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print Suppressing stomach acid while taking antibiotics may allow antibiotic-resistant bacteria to colonize the intestines, a study shows. Researchers had previously linked stomach-acid suppression to pneumonia (SN: 10/30/04, p. 277: Available to subscribers at Affairs of the Heartburn: Drugs for stomach acid may hike pneumonia risk).