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Iron supplements may cause a grayish-black stool that should be distinguished from melena, [3] as should black coloration caused by a number of medications, such as bismuth subsalicylate (the active ingredient in Pepto-Bismol), or by foods such as beetroot, black liquorice, or blueberries. [4]
Bismuth medications are usually used to treat diarrhea, upset stomach, and heartburn, and can include brands like Pepto-Bismol and Kaopectate. But while they can calm your stomach, they also can ...
For instance, Pepto Bismol can temporarily turn stools black, as can iron supplements. If you don’t think your green stool is the result of your diet, schedule a visit with your doctor to ...
It can cause a black tongue and black stools in some users of the drug when it combines with trace amounts of sulfur in saliva and the colon to form bismuth sulfide. [7] Bismuth sulfide is a highly insoluble black salt, and the discoloration seen is temporary and harmless. Long-term use (more than six weeks) may lead to accumulation and ...
Antimotility agents are drugs used to alleviate the symptoms of diarrhea. These include loperamide (Imodium), bismuth subsalicylate (Pepto-Bismol), [1] diphenoxylate with atropine (Lomotil), and opiates such as paregoric, tincture of opium, codeine, and morphine.
(Find out the 9 most common reasons why your poop is black.) ... As noted by Dr. O’Connor, certain drugs and supplements can cause the stool to appear pale or clay-like.
The stool guaiac test involves fasting from iron supplements, red meat (the blood it contains can turn the test positive), certain vegetables (which contain a chemical with peroxidase properties that can turn the test positive), and vitamin C and citrus fruits (which can turn the test falsely negative) for a period of time before the test.
Fecal occult blood testing (FOBT), as its name implies, aims to detect subtle blood loss in the gastrointestinal tract, anywhere from the mouth to the colon.Positive tests ("positive stool") may result from either upper gastrointestinal bleeding or lower gastrointestinal bleeding and warrant further investigation for peptic ulcers or a malignancy (such as colorectal cancer or gastric cancer).