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Doctor insights on: Can Pepto Bismol Cause Black Diarrhea

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I'm having watery stools which are black in color, I've taking pepto bismul and still no relief. What can I do to relieve this diarrhea?

I'm having watery stools which are black in color, I've taking pepto bismul and still no relief. What can I do to relieve this diarrhea?

Be seen: The black color is most likely due to the bismuth in the pepto-bismol, but you should be seen to get some diarrhea medication and possible testing. ...Read more

Dr. Oscar Novick
2,188 Doctors shared insights

Loose Stools (Definition)

Loose stools is a symptom in which a person's stool (poop) does not hold its shape after it goes into the toilet. Instead of remaining a shaped piece of poop, the poop spreads out in the toilet bowl water. Very loose stool is called diarrhea. Loose stool can be caused by infections, certain foods or drinks, ...Read more


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Immodium seems to help with chronic diarrhea after surgery. However, it appears to cause severe bloating. Would pepto bismal help with bloating?

Immodium seems to help with chronic diarrhea after surgery. However, it appears to cause severe bloating. Would pepto bismal help with bloating?

Assess your diet: Imodium (loperamide) is a motility modifier. It takes the number of squeeze messages in the gut & slows them down, so things are pushed along slower. If you are bloating, it is likely this effects how the gas your digestion makes moves along in the same way. You need to reduce gas producing foods in your diet (like cauliflower, beans) & take a probiotic to alter your gas production. Pepto may have a placebo effect ...Read more

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I have had diarrhea for two days I took pepto bismol (bismuth subsalicylate) today and within the first 2 hours it turned my stool black. Is this the pepto bislmol that did this cause it was normal the first two days?

I have had diarrhea for two days I took pepto bismol (bismuth subsalicylate) today and within the first 2 hours it turned my stool black. Is this the pepto bislmol that did this cause it was normal the first two days?

Hi.: Hi. The bismuth in pepto-bismol can cause black stools. Black stools that are very tarry/ sticky and smell really bad can be a sign of gastro-intestinal bleeding. There are quick tests that can be done to see if there is blood in the stool. Take care. ...Read more

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I have just woken up from hot flashes caused by diahrea. I have taken pepto bismol (bismuth subsalicylate). Is there any other remedies I could use so I can get some sleep?

I have just woken up from hot flashes caused by diahrea. I have taken pepto bismol (bismuth subsalicylate). Is there any other remedies I could use so I can get some sleep?

Sleeping?: Sleeping while having diarrhea can be risky/ messy. The cause of the diarrhea is important to know. Diarrhea alone does not usually cause hot flashes. This may be an infectious diarrhea in which case you need antibiotics. ...Read more

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Liquid Pepto Bismal expired 9 months ago, is it okay to take? (Diarrhea)

Liquid Pepto Bismal expired 9 months ago, is it okay to take? (Diarrhea)

Expired mediciation: Most likely the medication is still okay. However I would throw it out and simply pick up a new bottle. It's not expensive. ...Read more

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Can you take pepto bismal with antibiotic for travelers diarrhea?

Can you take pepto bismal with antibiotic for travelers diarrhea?

When appropriate:: With travel to places where bacterial diarrhea is common. For viral diarrhea, pepto bismol (bismuth subsalicylate) alone is better. ...Read more

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I've been vomiting and having diarrhea for a few hours. If I take pepto bismal tablets, how long do I have to keep them down for it to work?

I've been vomiting and having diarrhea for a few hours. If I take pepto bismal tablets, how long do I have to keep them down for it to work?

See a doctor: What's concerning more is vomiting and inability to keep things down, you may get dehydrated easily, try clear water /fluids, to help replace fluid loss, till seen by your doctor, good luck ...Read more

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I had diarrhea yesterday morning 3 times, it stopped and it happened again at work once; I took Pepto Bismol and the diarrhea stopped completely, YAY! But now I have this full feeling and my stools are black, why? I'm a little nervous about this.

I had diarrhea yesterday morning 3 times, it stopped and it happened again at work once; I took Pepto Bismol and the diarrhea stopped completely, YAY! But now I have this full feeling and my stools are black, why? I'm a little nervous about this.

Melena: Black stools may be due to the bismuth in peptobismol, but one can never make this assumption until the stool has been tested for the presence of blood, which is the more common cause. In your case it is probably the PB, but best to go and be tested. Very easily done. ...Read more

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Can I give my 13yr old daughter some pepto bismal. She was diagnosed w/gastroenteritis on 3/27/13.She stills have a lil diarrhea only. So can I or not?

Can I give my 13yr old daughter some pepto bismal. She was diagnosed w/gastroenteritis on 3/27/13.She stills have a lil diarrhea only. So can I or not?

No: While the risk is fairly small, salicylates (such as Bismuth Subsalicylate in pepto bismol, (bismuth subsalicylate) adult version) has been linked with reye syndrome in children, even up to the teenage years. You can consider getting the children's version of the medication, which does not have the salicylate in it. ...Read more

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Ok took pepto bismol (bismuth subsalicylate) and went to have diarrhea and when wiped had blood and in toilet what's this mean? Cause wasn't having before.

Ok took pepto bismol (bismuth subsalicylate) and went to have diarrhea and when wiped had blood and in toilet what's this mean? Cause wasn't having before.

Gi bleeding: Blood in a stool may be from inflamed hemorrhoids or rectal fissure or sign of internal gastrointestinal bleeding, such as ulcer or bleeding colonic polyp, you need to see gastroenterologist for thorough rectal exam ...Read more

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Should I go to the er? I have had diarrhea for constantly for over 6 months and counting. It is getting harder and harder to keep continent. There are no stomach pains, nor is there any blood in the stools. I can take pepto bismal but it only stops the sy

Should I go to the er? I have had diarrhea for constantly for over 6 months and counting. It is getting harder and harder to keep continent. There are no stomach pains, nor is there any blood in the stools. I can take pepto bismal but it only stops the sy

Hello.: Hello. Usually would recommend going to the emergency room for acute problem. Diarrhea for six months should be medically evaluated. However, since you are stable and the symptoms have lasted for six months, at this point you might wish to schedule an appointment with your family physician or a gastrenterologist. Take care. I hope you find the answer to you loose stools. ...Read more

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I took 2 pepto bismol (bismuth subsalicylate) pills and they haven't worked yet I have diarrahea and it hasn't gotten any better ive lost 2 pounds what should I do?

I took 2 pepto bismol (bismuth subsalicylate) pills and they haven't worked yet I have diarrahea and it hasn't gotten any better ive lost 2 pounds what should I do?

Ans: You need to give a thorough history. Have you had any other symptoms? Fever? Need more information. Well for now drink lots of wTer to replenish your fluid loss if no improvement see your doctor. ...Read more

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What is pepto bismol used for? And can I use it for acid reflux after a meal? I'm on toprol (metoprolol) XR and synthroid. Also having diarreah

Yes: Pepto bismol (bismuth subsalicylate) is used for nausea, heartburn, indigestion, upset stomach and diarrhea. Since heartburn is a common signs of acid reflux, most likely pepto bismol (bismuth subsalicylate) will help. Consult your doctor about a medication you can take if this over the counter drug does not help. Always consult your doctor about mixing medications as well since I am not familiar with your medical history. ...Read more

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I am taking a zpack and on day 3, I have an upset stomach and some diarreha, can I take pepto bismol (bismuth subsalicylate)?

Yes!: There are no known interactions between azithromycin (Z-pak) and Pepto Bismol (bismuth subsalicylate). To reduce upset stomach and diarrhea, take the z-pak with food, like a large meal such as dinner. You can also take Immodium AD to minimize diarrhea. After you finish the antibiotics, your upset stomach and diarrhea should go away in a few days. If not, see your doctor. ...Read more

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Can you take pepto bismol while on tamiflu (oseltamivir) to help stop diarrhea?

Can you take pepto bismol while on tamiflu (oseltamivir) to help stop diarrhea?

Yes: alternative: A better alternative would be forcing 2 type of fluids: electrolyte rich (powerade, gatorade, vitamin water) and protein rich fluids (broth, boullion, consume') along with Imodium (loperamide) ad as directed. Pepto bismol is bismuth which cannot hurt you- but can make your tongue turn black. ...Read more

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My dads been having diarrhea for 3 days now 5x a day. Is that bad or serious? I told him to get pepto bismol (bismuth subsalicylate)

My dads been having diarrhea for 3 days now 5x a day. Is that bad or serious? I told him to get pepto bismol (bismuth subsalicylate)

Self-limited: Most causes of acute diarrhea (less than 3 weeks in duration) are self-limited and will resolve on their own without any specific treatment. Ensuring that one does not become dehydrated is the most important intervention. Use pedialyte, or other similar liquids to staty hydrated. The elderly are at risk especially if they are taking water-pills or have kidney, heart or liver diseases. ...Read more

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Need expert help. I am taking zythromac and I have really bad diarrhea. Can I take pepto bismol (bismuth subsalicylate) to relieve it?

Yes, you can.: When taking an antibiotic, it can change the normal bacterial balance in the large intestine. Better also use a balancer like acidophillus in capsule form or a yogurt with active cultures like dannon or even activia. ...Read more

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How come I had some pepto bismol (bismuth subsalicylate) and travelers diarrhea but its not helping?

Mechanical action: Peptobismol is not a cure for travelers diarrhea (which may be produced by several different microorganisms and sometimes requires antibiotic treatment unless spontaneously resolves), but it provides some degree of symptomatic relief, the degree of effectiveness dependent upon the underlying disease. ...Read more

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I just took 2 doses of pepto bismol for diarrhea but it's not helping my nausea at all. Is it safe to take zofran?

I just took 2 doses of pepto bismol for diarrhea but it's not helping my nausea at all. Is it safe to take zofran?

Yes: As pepto-bismol won't help your nausea, but if symptoms aren't improving and zofran isn't helping, see your doctor, good luck ...Read more

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Can I mix pepto bismol (bismuth subsalicylate) and gravol and diarrhea pills together?

Can I mix pepto bismol (bismuth subsalicylate) and gravol and diarrhea pills together?

Probably: But if you are taking gravol, why? This is for nausea and vomiting and not diarrhea. You don't say what the diarrhea pill really is, so check with your friendly pharmacist for possible drug interactions. ...Read more

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Since last night my stomachache is cramping and have diarrhea real bad I've been taking pepto bismol but it's not working seems like it's getting wors?

Since last night my stomachache is cramping and have diarrhea real bad I've been taking pepto bismol but it's not working seems like it's getting wors?

Food. ..48 hours: Since it came so sudenly it sounds most likely related to something you ate. Any blood in stool?, dark?, are you able to drink liquids? At this point if no fever, blood in stool - you needs to stay only on liquid diet with gradual addition of food as rice, broth. Also Try High potency Probiotic (Kefir, Yogurt - plain, + if supplement available VSL#3). Avoid sweets, milk, fry food, greasy food. ...Read more

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Could I drink pepto bismol after drinking prune juice because I have diarrhea?

Could I drink pepto bismol after drinking prune juice because I have diarrhea?

Yes: There is no harmful interaction with peptobismol and prunes. Bear in mind that peptobismol can make your stool black in color. ...Read more

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Heavy diarrhea not cured by pepto bismol, (bismuth subsalicylate) and loud growling noises from lower stomach for more than 12 hours. Should I be concerned?

Heavy diarrhea not cured by pepto bismol, (bismuth subsalicylate) and loud growling noises from lower stomach for more than 12 hours. Should I be concerned?

Diarrhea: Go to a doctor if the symptoms persist. If you have Diarrhea for prolonged periods of time, you will become dehydrated and your electrolytes will become imbalanced, which could lead to serious problems. Have the situation investigated if the problem persists. ...Read more

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I have had watery diarrhea for the past 4 days. I also have mild nausea and lack of appetite. Pepto bismol is not helping. What should I do?

I have had watery diarrhea for the past 4 days. I also have mild nausea and lack of appetite. Pepto bismol is not helping. What should I do?

Explanation: Watery diarrhea can be viral or bacterial. Pepto bismol is not really effective. Diet is helpful.: white rice a lot, apple sauce, banana and probiotics. 2-3 days and you should be fine. ...Read more

Dr. Andrew Berry
274 Doctors shared insights

Pepto Bismol (Definition)

Pepto-Bismol is an anti-diarrheal agent which is a ...Read more


Dr. Oscar Novick
3,346 Doctors shared insights

Diarrhea (Definition)

Diarrhea = increased frequency of stools which ...Read more