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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 ...
A number of foods and medications can turn the stool either red or black in the absence of bleeding. [2] Bismuth found in many antacids may turn stools black as may activated charcoal. [2] Blood from the vagina or urinary tract may also be confused with blood in the stool. [2]
Melena is a form of blood in stool which refers to the dark black, tarry feces that are commonly associated with upper gastrointestinal bleeding. [1] The black color and characteristic strong odor are caused by hemoglobin in the blood being altered by digestive enzymes and intestinal bacteria.
In fact, calcium-containing antacids are known to cause changes in stool color. ... dark urine. swelling in the ankles or legs. persistent itching. pain in the abdomen and back.
The result can be impaired nutrient absorption, excessive water and mineral loss through the stools due to breakdown of the control mechanisms in the intestinal tissue that normally remove water from the stools, and in severe cases, the entry of pathogenic organisms into the bloodstream. Anemia may also arise due to the blood loss through diarrhea.
This includes babies and young children, older individuals and people with serious underlying medical conditions such as having kidney or heart disease and being immunocompromised.
Decreasing intestinal motility prolongs the transit time of food content through the digestive tract, which allows for more fluid absorption; thereby alleviating diarrhea symptoms and improving stool consistency and frequency. [4] Unlike other opiates, loperamide does not cross the blood brain barrier, so there is minimal risk for abuse. [5]
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