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7 Best Diarrhea Medicines for Dogs in 2024

Written by: Arlene D.
| Published on January 19, 2024
iHeartDogs is reader supported. Some of the links below may be paid affiliate links, where we receive a small commission on a product at no additional cost to you. 

Navigating the world of dog diarrhea medicine and supplements can be challenging for dog parents as diarrhea can be caused by a number of factors. Diarrhea is a common ailment in dogs, often causing discomfort and worry. The primary causes of diarrhea in dogs include dietary indiscretions, such as eating inappropriate food or garbage, infections from bacteria or viruses, infestations by parasites like worms, and chronic diseases like inflammatory bowel disease.

Knowing when these conditions can be safely managed at home with suitable supplements and when to seek veterinary care is essential. Over-the-counter remedies can be effective for mild cases, but severe or persistent symptoms necessitate professional advice. It’s important to consider factors like the dog’s age, size, and overall health when selecting treatments. Understanding the right over-the-counter treatments is crucial for maintaining your dog’s digestive health.

Additionally, not all human diarrhea remedies are safe for dogs, making it important to choose products specifically designed for canine use. This guide covers top remedies for dog diarrhea, focusing on effectiveness, safety, and ease of administration. In cases of severe diarrhea, especially if accompanied by symptoms like blood in the stool, lethargy, or vomiting, immediate veterinary attention is absolutely necessary. Early intervention can prevent complications and ensure the best outcome for your pet’s health.

dog diarrhea

What Are Some Medicines or Supplements That Can Be Given to a Dog with Diarrhea?

There are a variety of medications and supplements that can help soothe a dog’s upset stomach and help manage diarrhea. However, you should always consult with your vet before administering any new medication or supplement to your dog. Here are a few options:

  1. Over-the-counter (OTC) Medications: Some OTC medications, like Pepto Bismol or Imodium, can be used for dogs with diarrhea. However, you must consult with your vet for the correct dosage and to ensure they are safe for your specific breed and age of the dog.
  2. Prescription Medications: In more severe cases, your vet may prescribe a medication specifically designed to treat diarrhea in dogs. This could include Metronidazole or Sulfasalazine.
  3. Probiotics: Probiotics can help restore the balance of good bacteria in your dog’s gut, which can help alleviate diarrhea. There are many dog-friendly probiotic supplements available on the market.
  4. Pumpkin: Plain canned pumpkin (not pumpkin pie mix) is a natural remedy for diarrhea in dogs. It’s high in fiber, which can help firm up your dog’s stool.
  5. Dietary Changes: Sometimes, diarrhea can be the result of food intolerance or sensitivity. A bland diet consisting of cooked chicken and rice can help soothe your dog’s digestive system and reduce the occurrence of diarrhea.

Again, it’s crucial to consult with your vet before giving your dog any new medication or supplement. Diarrhea can be a symptom of a more serious underlying issue, so it’s important to get a proper diagnosis.

What to Consider When Choosing Diarrhea Treatments for Dogs

Consider these factors when choosing diarrhea medicines and supplements for dogs:

  1. Suitability for Dogs: Ensure the product is specifically formulated for canine use. Some human medications can be harmful to dogs.
  2. Active Ingredients: Check for the active ingredients and their known efficacy in treating diarrhea in dogs. Ingredients like bismuth subsalicylate, probiotics, or kaolin-pectin are commonly used.
  3. Age and Size of the Dog: Consider the dog’s age and size. Dosage and formulation can vary greatly between a small puppy and a large adult dog.
  4. Underlying Health Conditions: Be aware of any pre-existing health conditions the dog may have, such as kidney or liver disease, which could be affected by certain medications.
  5. Type of Diarrhea: Understand the type of diarrhea (acute, chronic, caused by infection, dietary indiscretion, etc.) as different treatments may be required.
  6. Form of Medication: Decide on the most suitable form of medication for the dog, such as pills, liquid suspensions, or powders. Consider how easy it is to administer the medication. Some dogs may be more cooperative with certain forms of medication.
  7. Duration of Treatment: Check how long the treatment should be given and the recommended course of action if symptoms persist.
  8. Side Effects: Be aware of potential side effects and interactions with other medications the dog may be taking.
  9. Veterinary Recommendations: Look for products that are recommended or approved by veterinarians.
  10. Cost: Consider the cost and whether it fits within your budget, but also weigh this against the effectiveness and safety of the product.
  11. Emergency Situations: Recognize when over-the-counter treatment is insufficient and veterinary intervention is required. Persistent, severe, or bloody diarrhea warrants immediate veterinary attention.

Remember, while over-the-counter treatments can be effective for minor cases of diarrhea, it’s best to consult with a veterinarian, if symptoms are severe or persistent.

7 Best Diarrhea Medicines for Dogs

iHeartDogs 3-in-1 Probiotic for Dogs
  • Contain prebiotics, probiotics, and digestive enzymes
  • Soft, treat-like supplements
  • Benefits your dog's digestion, skin, coat, and eyes
  • Donates meals to shelter dogs

The iHeartDogs 3-in-1 Probiotic for Dogs with Pumpkin is designed to promote healthy digestion and gut health in dogs. It combines probiotics, prebiotics, and digestive enzymes to improve digestive health. The product also includes pumpkin and papaya, which provide immune system support and are rich in vitamins and minerals. It is suitable for dogs with food sensitivities and allergies, as it is grain-free, gluten-free, and soy-free, and is made in the USA following strict quality control guidelines.


Vets Preferred Anti Diarrhea Liquid for Dogs
  • Diarrhea & gas relief with Pectin and Kaolin
  • Suitable for use in cases of diarrhea, gastroenteritis, gas relief
  • Administer once every 12 hours
  • Can be mixed with food for easy administration
  • Made in the USA

Vets Preferred Dog Anti Diarrhea Liquid is a medication designed to provide relief for dogs suffering from diarrhea. It is formulated with pectin fiber and kaolin clay to soothe and firm the dog’s stomach. This veterinarian-grade product is made in the USA and can be administered once every 12 hours directly or mixed with food. It aims to restore gut health and alleviate discomfort associated with dog diarrhea within 2-3 days.


Nutramax Proviable Digestive Health Supplement Kit
  • 7 types of beneficial bacteria
  • Contains 5 billion CFU
  • Capsules that can be easily sprinkled over food
  • Veterinarian recommended
The Nutramax Proviable Digestive Health Supplement Kit is a product designed to support the digestive health of medium to large dogs. It contains 7 strains of bacteria and provides 5 billion colony-forming units (CFUs) of beneficial bacteria to help maintain a healthy intestinal balance. The kit also includes prebiotics to encourage the growth of beneficial probiotics within the dog’s intestines. This supplement can be especially useful after imbalances occur due to factors such as diet changes, food sensitivities, or stress. The Nutramax Laboratories Veterinary Sciences brand is a reputable company in the field of pet health, with a focus on providing safe and effective supplements backed by scientific research.


Nutri-Vet Anti-Diarrhea Liquid for Dogs
  • Give orally to help stop dog diarrhea and upset stomach
  • Pectin provides a protective coating
  • Kaolin, an adsorbent, increases bulk and slows down passage
  • Formulated by veterinarians
  • Carries NASC quality seal

Nutri-Vet Anti-Diarrhea Liquid for Dogs is a veterinarian-formulated solution that helps soothe upset stomachs and stop diarrhea in dogs. The liquid contains pectin, which provides a protective coating to irritated gastrointestinal membranes, and kaolin, which slows down stool passage by increasing bulk. Made in the USA with high-quality globally sourced ingredients, this product is made to the highest standards of quality and consistency. It is also backed by the National Animal Supplement Council (NASC) quality seal.


Vetoquinol Pro-Pectalin Oral Paste for Dogs & Cats
  • Oral paste for dogs & cats with loose stool & diarrhea
  • Pro-Pectalin contains kaolin, pectin and Enterococcus faecium
  • Chicken-flavored gel soothes upset digestive system
  • Kaolin soothes intestines & absorbs unhealthy toxins
  • Pectin absorbs water & helps firm stool

The Vet Solutions Pro-Pectalin Anti-Diarrhea Oral Gel is a supplement designed for dogs and cats suffering from diarrhea caused by stress or other factors. It contains kaolin, which helps soothe irritated intestines and absorbs excess water and bacterial toxins. The gel also includes enterococcus faecium, part of the normal intestinal flora, and pectin, which aids in firming stool by absorbing water. Additionally, the gel uses microencapsulation to protect the bacteria against stomach acids.


VetriScience Fast Balance GI Paste for Dogs and Cats
  • Fast acting and easy-to-administer paste for dogs and cats
  • Recommended for stress-related GI issues, nervous gut and food sensitivities
  • Probiotics blend: bacillus subtilis, Mixed lactic acid bacteria, and Enterococcus faecium
  • Made in the USA and formulated by veterinarians

VetriScience Fast Balance GI Paste is a fast-acting and easy-to-administer paste that provides immediate gastrointestinal support for dogs and cats. It is recommended for pets that are experiencing stress-related GI issues, nervous gut, and food sensitivities. The product contains beneficial probiotics including bacillus subtilis, mixed lactic acid bacteria, and Enterococcus faecium. It is made in the USA and formulated by veterinarians to help pets live happier and healthier lives.


Bernie’s Best Perfect Poop Digestion & General Health Supplement for Dogs
  • High Fiber Grass Bits to naturally revitalize the gut
  • 4 in 1 formula with fiber, prebiotics, probiotics, and enzymes
  • Non-GMO, gluten free Midwestern grown miscanthus grass
  • Yummy cheddar cheese flavor
  • Made in the USA

The Perfect Poop Digestion & General Health Supplement for Dogs is a natural and holistic solution that aims to improve the digestive health of dogs. It helps relieve various digestive issues such as diarrhea, constipation, upset stomach, and bloating. This supplement combines high-fiber grass bits, prebiotics, probiotics, and enzymes to support the healthy gut and overall well-being of dogs. It is made with natural, premium ingredients, is grain-free, and non-GMO.


Frequently Asked Questions About Diarrhea Medications for Dogs

What is the first step when my dog has diarrhea?

When your dog has diarrhea, the first step should be a visit to the vet. Diarrhea can be a sign of various health issues, from dietary intolerance to serious illnesses. Your vet can help diagnose the cause and recommend the best course of treatment.

Can I use human anti-diarrheal medications for my dog?

Some human anti-diarrheal medications, such as Pepto-Bismol or Imodium, can be used for dogs, but you must consult with your vet first. These medications can have side effects, and dosages for dogs are often much less than for humans.

How can probiotics help my dog’s diarrhea?

Probiotics help restore the balance of good bacteria in your dog’s gut, which can be disrupted by illnesses or medications. A healthy gut flora can help reduce diarrhea and improve overall digestive health.

Can a change in diet help with my dog’s diarrhea?

Yes, a change in diet can often help manage diarrhea. A bland diet, such as boiled chicken and rice, can help soothe your dog’s digestive system. In some cases, your vet may recommend a prescription diet formulated for digestive health.

Are there natural remedies for diarrhea in dogs?

Yes, there are natural remedies such as pumpkin, which is high in fiber and can help firm up your dog’s stool. However, these remedies should be used alongside, not instead of, veterinary treatment.

How long should I wait before taking my dog to the vet for diarrhea?

If your dog has had diarrhea for more than 24 hours, or if the diarrhea is accompanied by other symptoms like vomiting, lethargy, or blood in the stool, you should take your dog to the vet immediately.

Can chronic diarrhea in dogs be a sign of a serious health problem?

Yes, chronic diarrhea can be a sign of a serious health problem, such as intestinal parasites, inflammatory bowel disease, or even certain types of cancer. That’s why it’s important to consult a vet if your dog’s diarrhea persists.

Can diarrhea medicine for dogs cause side effects?

Yes, diarrhea medications can cause side effects. These can include drowsiness, constipation, or changes in appetite. Always monitor your dog for side effects after starting a new medication.

What should I do if my dog’s diarrhea doesn’t improve with medication?

If your dog’s diarrhea doesn’t improve with medication, you should contact your vet as soon as possible. The vet may need to adjust the dosage or try a different medication.

Can diarrhea medication for dogs be used as a long-term solution?

Generally, diarrhea medication is intended for short-term use to alleviate acute symptoms. For long-term management of diarrhea, dietary changes, probiotics, or treatment of underlying health conditions may be needed.

dog diarrhea supplement

Conclusion: Best Diarrhea Medicine for Dogs

In conclusion, while diarrhea in dogs can be distressing for both the pet and the owner, there are many effective medicines available that can help to alleviate the symptoms and restore your dog’s digestive health. However, always remember that these medicines should be used responsibly and as part of a comprehensive health care plan for your pet, ideally under the guidance of a trusted veterinarian. If your dog’s symptoms persist or if they appear to be in distress, it is important to seek professional veterinary care immediately. Your dog’s health is paramount, and this guide to the best diarrhea medicines should serve as a tool in preserving their well-being.

iHeartDogs is reader supported. Some of the links below may be paid affiliate links, where we receive a small commission on a product at no additional cost to you. 

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