| http://www.w3.org/ns/prov#value | - plements containing B complex vitaminsPink or red * Blood in the urine, such as due to kidney or bladder infection or cancer * Certain foods, such as beets and berries, and food dyes * Some laxativesOrange * Side effect of certain medications, such as rifampin, doxorubicin (Adriamycin, Rubex), phenazopyridine (Pyridium) and warfarin (Coumadin) * Certain foods and food dyes * Dehydration * Some lax
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