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Doctor insights on: How Common Is Dark Urine When Taking Metronidazole

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Urine (Definition)

Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more


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I'm on metronidazole and noticed dark urine. Should I stop using it?

I'm on metronidazole and noticed dark urine. Should I stop using it?

According to: Drugs. Com "Instances of darkened urine have been investigated. The pigment responsible has not been positively identified; however, it is most likely a metabolite of metronidazole and appears to have no clinical significance." Would not stop - but would advise your prescribing provider. ...Read more

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Can 30mg/day taking for 3days cause dark urine (one episode) also on metronidazole for vaginitis and now have aches in pelvic area? Help! Worried!

Can 30mg/day taking for 3days cause dark urine (one episode) also on metronidazole for vaginitis and now have aches in pelvic area? Help! Worried!

Should be ok: Nothing I know of would cause the realtionship of dark urine and flagyl or prednisone, should clear up fats if not or urine symptoms get urine culture and drink more water to clear the urine, vaginitis is a yeast /fungul infection and treated by diflucan (fluconazole) usually, vaginosis is a bacterial infection treated by flagyl [can't drink alcohol while on it or get nausea] ...Read more

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I was recently given ceftriaxone (shot), azithromycin (pill) and flagyl (pill) as pre-exposure preventative therapy. Is dark urine a side effect?

I was recently given ceftriaxone (shot), azithromycin (pill) and flagyl (pill) as pre-exposure preventative therapy. Is dark urine a side effect?

Nope: None of these drugs is a likely cause of dark urine; no worries there, but contact the doctor or clinic where you were treated. Obviously you were considered at risk for STDs. These drugs will prevent gonorrhea, chlamydia, syphilis, and trichomonas, but not viral STDs like HIV, herpes, hepatitis B, and HPV. Be sure to follow up as directed by the doctor or clinic. Good luck! ...Read more

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Does metronidazole 500mg tabs cause dark urine (redish/brownish/yellowish) and diarrhea? And is it normal or I should be worried?

Does metronidazole 500mg tabs cause dark urine (redish/brownish/yellowish) and diarrhea? And is it normal or I should be worried?

Yes, metronidazole: Can cause ur symptoms. Eating apples and bananas should relieve ur diarrhea. Follow up with ur dr for any concerns. Take care and god bless u! ...Read more

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What are the common causes for dark urine / blood in the urine?

What are the common causes for dark urine / blood in the urine?

Many things: Infection, increased bilirubin (which can be from a liver problem or blood destruction). There is a rare disorder called paroxsymal nocturnal hemoglobinuria. Could be bleeding from the kidney. The most common would be an infection. ...Read more

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Does metronidazole pills make your urine dark?

Does metronidazole pills make your urine dark?

Yes it can: Flagyl (metronidazole) can cause a darkening of urine. This is generally a harmless effect when taking the medication. ...Read more

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Started taking metronidazole yesterday. Used the bathroom & urine was dark yellow & I had a clumpy white discharge that wasn't present before.

Started taking metronidazole yesterday. Used the bathroom & urine was dark yellow & I had a clumpy white discharge that wasn't present before.

Vaginal discharge: If you were prescribed metronidazole for a vaginal infection (trichomonas or bacterial vaginosis), you'rr probblly seeing discharge from that infection. Symptoms can persist and even get for a couple days after starting treatment, so wait a few days and see what happens. But if in doubt, contact the doctor/clinic treating you. ...Read more

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What exactly does dark urine mean?

Dark urine: Dark urine can mean many things. The main concern is blood in urine will create a dark "tea-colored" urine. I recommend that you see your doctor and have a urinalysis along with a culture as soon as possible. Www. Peedoc. Com @drhtay. ...Read more

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What does it mean if you have super dark urine?

What does it mean if you have super dark urine?

Dark urine: Common causes of dark urine are bilirubin, blood, hydration status. Www. Peedoc. Com @drhtay. ...Read more

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What is the definition or description of: Dark urine?

Dark urine: Urine tends to be golden yellow from uric acid excretion.
Brown or red suggests hemolysis, i.e. dark urine.
Many causes, from trauma, infection, neoplasia, etc.
We should all strive for crystal clear urine.
Drink plenty of H2O! ...Read more

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I"ve had dark urine that sinks to bottom of toilet. What could this be?

I"ve had dark urine that sinks to bottom of toilet. What could this be?

Dehydration: Please drink more water and your issue should resolve itself otherwise see your health care provider. ...Read more

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What causes dark urine with bubbles on top?

Several items: Dark urine could represent dehydration with concentrated urine. It could also represent blood in the urine or even abnormalities of liver function causing jaundice. Frothy urine with bubbles often represents increased phosphate levels and is rarely significant. ...Read more

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I was wondering is dark urine only a sign of dehydration?

I was wondering is dark urine only a sign of dehydration?

It is one cause: It can also be a sign that other issues are involved, like kidney disease or damage, liver disease, etc. It all depends on what is found in the urine. ...Read more

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What causes dark urine color?

What causes dark urine color?

Dark: Dehydration most commonly. It could be blood however or bile. Get it checked. ...Read more

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Is dark urine normal for the bladder?

Is dark urine normal for the bladder?

It Depends: If your urine is a bit darker in the morning or when you are dehydrated, that can be normal because the urine is just a bit more concentrated. This will normalize if you drink fluids, and if it does you're generally fine. However, blood in the urine, or urine the color of dark tea/ cola drinks is not, and you should contact your doctor if that occurs, or with any questions. ...Read more

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Dark urine even after drinking plenty of water. Dehydrated?

Dark urine even after drinking plenty of water. Dehydrated?

Possible: Dark urine may be from dehydration as well as blood in the urine or from diet beets redden the urine and b vitamins can make the urine strongly yellow. ...Read more

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What are some causes of peeing dark urine and having pelvic pain?

Exam: Dark urine can indicate possible serious kidney issues. Get to your family doctor. ...Read more

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Why do I have dark urine, pain in right abdomen and back, brown/yellow bits in urine?

Why do I have dark urine, pain in right abdomen and back, brown/yellow bits in urine?

See doctor: There are a number of possible causes for the above symptoms, to include kidney disease, infection, stones, and others. A visit to the doctor is warranted to evaluate and treat the underlying condition. ...Read more

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I had a dark urine from 2 days and pain in my left kidney I drink a lot of water but still no change.

I had a dark urine from 2 days and pain in my left kidney I drink a lot of water but still no change.

Dark urine: Do you drink 80oz if water a day! The color of urine doesn't usually corral are with " kidney pain". Often people think any type of back discomfort is kidney pai and usually not related unless an obvious kidney stone... ...Read more

Dr. Jerome Zacks
231 Doctors shared insights

Dark Urine (Definition)

Urine tends to be golden yellow from uric acid excretion. Brown or red suggests hemolysis, i.e. dark urine. Many causes, from trauma, infection, neoplasia, etc. We should all strive for crystal clear urine. ...Read more


Dr. Anthony Sharber
1,009 Doctors shared insights

Metronidazole (Definition)

It's an antibiotic used to treat infections such as bacterial vaginosis or a type of ...Read more