Can pepto bismol go bad?

In this short article, we will provide an answer to the question “can Pepto Bismol go bad?” and the best practices to store it.

Can pepto bismol go bad?

Yes, Pepto Bismol can go bad. Pepto-shelf Bismol has a finite shelf life. Pepto-True Bismol has a shelf life that is very likely far longer than the one stated on the container. However, UV light, high temperatures, and how the container is handled all have the potential to speed up the decomposition process.

Being an antidiarrheal drug, Pepto Bismol is used to treat the symptoms of stomach acid reflux, which include symptoms such as heartburn, indigestion, and nausea. Additionally, it is often used to relieve gastrointestinal discomfort.

Which mechanism of action does Pepto Bismol use?

The following are some of the reasons that Pepto Bismol is beneficial to our digestive system:

Pepto Bismol contains an active ingredient called bismuth subsalicylate. It envelops and shields stomach ulcers from the acid produced by the stomach.

Sodium bismuth subsalicylate is a compound that suppresses the development of Helicobacter pylori bacteria, which are responsible for the stomach, small intestine, and ulcer infection. Pepto Bismol is often used in conjunction with other medications by doctors to get the greatest results.

In our stomach, it works as an antacid, reducing acid reflux in the cells of our digestive system.

Furthermore, Pepto Bismol reduces diarrhea by doing the following:

Increase the amount of fluid that is absorbed by the mucosa of the gastrointestinal tract (gastrointestinal system).

It is necessary to coat the GI tissues to slow the pace at which liquids move from the mucosa of the GI tract to the feces.

It helps to relieve stomach and intestinal pain by decreasing the synthesis of prostaglandins, which are inflammatory molecules that are produced when inflammation occurs.

Bringing down the hyperactivity of the stomach and intestines.

The negative consequences of Pepto Bismol

In most cases, the negative effects of Pepto Bismol are temporary and will subside with time. Pepto Bismol that has expired, on the other hand, may have unpleasant side effects that last a bit longer. Several negative consequences may occur from using Pepto Bismol, including the following:

  • Sulfur may be present in small amounts in our saliva and gastrointestinal system, and when bismuth subsalicylate comes into contact with it, it transforms into bismuth sulfate, which is harmful to human health. Because bismuth sulfate is a dark substance, it darkens the tongue and stools when consumed.
  • It is believed that bismuth subsalicylate is responsible for stool hardness because it prevents water from passing through the feces. The severity of this unpleasant impact may be exacerbated in rare instances if the Pepto Bismol has expired.
  • It is a condition that develops as a result of ingesting salicylates over a prolonged length of time. Vertigo, hearing loss, stomach pain, vomiting, and fatigue are all signs and symptoms of Meniere’s disease.

Other FAQs about pepto bismol which you may be interested in.

Can you eat after taking Pepto Bismol?

Who should not use Pepto Bismol, according to medical advice?

Before taking any medicine, it is important to carefully read the label on the box of medication. Those who are suffering from certain medical problems should avoid using Pepto Bismol. This group of people includes the following individuals:

  • Individuals who are allergic to salicylates or aspirin, since bismuth subsalicylate is the main active ingredient in Pepto Bismol, should avoid using the medication.
  • Children and adolescents who are experiencing flu-like symptoms or who have chickenpox.
  • Affected individuals include those using anticoagulants, antiseizure medicines, diabetic and gout treatments, nonsteroidal anti-inflammatory drugs (NSAIDs), or antibiotics containing the tetracycline ring.
  • Breast-feeding mothers

How to keep Pepto in good condition so that you may use it after it expires?

A few considerations should be made while having Pepto Bismol or almost any other medicine on hand. If you can keep these variables constant, you will be able to put an end to the dispute about how long Pepto Bismol lasts until it becomes ineffective.

Pepto Bismol should be stored refrigerated or in a cold, dry place at all times after opening. Medication’s efficacy diminishes with time.

Increased temperatures do hasten this progression. If stored at a low temperature, it will, on the other hand, stay useful.

Because Pepto Bismol’s constituents are inert, they do not deteriorate when exposed to high temperatures; rather, their effectiveness is reduced.

Having a clean environment is important

Antibiotics that are kept in an unclean setting attract bacteria and other germs that flourish on the surface of the medicine. Because of the widespread use of these medicines, it is now possible that infections and other health issues may arise.


In this short article, we provided an answer to the question “can Pepto Bismol go bad?” and the best practices to store it.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.