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Urine Color
to avoid unnecessary alarm.
Some drugs frequently cause color changes.. .others show up
only in acidic or alkaline urine.
Brown, black, or dark urine can be seen with cascara..
furazolidone.. . levodopa.. .methyldopa. . .metronidazole.
nitrofurantoin.. . or senna.
Bright yellow urine is common with vitamin supplements that
contain riboflavin (vit B2).
Blue or green
urine can be caused by methylene blue (Urised)
amieriptyline.. . flutarnide. . .methocarbarnol.. . and triarnterene.
Green urine can also be due to the phenol in some INJECTABLE
drugs. . .cirnetidine, prornethazine, and propofol.
Red, pink, or orange urine can be seen with phenazopyridine
(Pyri di urn) . . .rifampiri. . .rifabutin.. .rifapentine,. .doxorubicin... sulfasalazine. .
.or phenothiazines.
Be sure to tell patients on warfarin or heparin to alert you if they have red urine because it might indicate bleeding.
We've created a chart of drugs that can change urine color... help yourself to a copy from
www.PrescribersLetter.com.
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