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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.
In rare cases, the drug may seriously injure the liver, and patients with symptoms including fatigue, unusual itching, nausea, vomiting, light-colored stools, dark urine, or yellow skin or eyes ...
It is also one of the medications that can cause toxic epidermal necrolysis or Stevens–Johnson syndrome. [8] The pediatric version of cefdinir can bind to iron in the digestive tract; in rare cases, this causes rust or red discoloration of the stool. Blood typically appears dark brown or black in stool, and testing may confirm which is present.
When black poop happens, family practitioners like Christine Traxler, MD, and pediatricians like Alison Mitzner, MD, are often the first ones their patients call. Just because your stool happens ...
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 ...
Deferoxamine is a drug that is used in cases of serious iron poisoning. It is a chelating agent and binds to free iron in the body in order to be eliminated by the kidneys into urine. [ 8 ] Dosing of deferoxamine should be determined through consultation with a toxicologist but is typically continuously infused at 15 mg/kg to 35 mg/kg per hour ...
Digested blood from the upper gastrointestinal tract may appear black rather than red, resulting in "coffee ground" vomit or melena. [2] Other signs and symptoms include feeling tired, dizziness, and pale skin color. [18] A number of foods and medications can turn the stool either red or black in the absence of bleeding. [2]
Drug-induced pigmentation of the skin may occur as a consequence of drug administration, and the mechanism may be postinflammatory hyperpigmentation in some cases, but frequently is related to actual deposition of the offending drug in the skin. [2]: 125–6 The incidence of this change varies, and depends on the type of medication involved.