Imodium Dosage For Dogs By Weight | Liquid & Caplets

Imodium (loperamide) is a medication that is used to treat diarrhea. Imodium is not just for humans, it can also be used to treat dogs diarrhea and other health issues such as acute colitis, irritable bowel syndrome, etc.

It works by slowing down the movement of the bowel, which helps to reduce the number of bowel movements and makes the stool more solid.

For every pet owner, this is essential to know the safe dosage of every canine medication, its benefits, and possible side effects.

This article is a comprehensive guide about Imodium dosage for dogs, chart by weight, benefits, side effects, and safe ways of administration.

Imodium for dogs

Dogs Escort Disclaimer: The information in this article is well researched and accurate but can only be used for guidance purposes. This will never replace your veterinarian’s advice. 

How Imodium (loperamide) Works?

Imodium (loperamide) is an antidiarrheal medication that slows down the intestines’ movement and gives the intestine more time to absorb fluid and electrolytes, which helps to decrease the number of bowel movements and make them less watery.

It is available over-the-counter (OTC) and in generic form.

Imodium Dosage for Dogs By Weight

The ideal safe dosage of Imodium liquid for dogs is 0.6-1.2 ml/kg or 0.3-0.6 ml/lb twice or thrice a day. The safe dosage of Imodium A-D EZ Chews for dogs is 1/2 caplet per 5 -11 kg or one 2mg tablet per 11-22 kg. Remember every 7.5 mL of Imodium A-D liquid contains 1 mg of loperamide. The Imodium A-D EZ Chews usually come in 2 mg caplets.

Imodium Dosage For Dogs

Imodium Liquid & Caplets Dosage Chart For Dogs by Weight

Dog Weight in kg (0.6-1.2 ml/kg)Dog Weight in lbs (0.3-0.6 ml/lb)Imodium Liquid Dosage for dogs (2-3 times a day)
3 kg6 lbs1.8-3.5 ml
5 kg11 lbs3-6 ml
10 kg22 lbs6-12 ml
15 kg 33 lbs9-18 ml
20 kg44 lbs12-24 ml
25 kg 55 lbs15-30 ml
30 kg66 lbs18-36 ml
35 kg77 lbs21-42 ml
40 kg88 lbs24-48 ml
45 kg99 lbs27-54 ml

The Above chart is based on Imodium A-D liquid 1mg loperamide per 7.5 mL

Kg Weight Lbs WeightImodium Caplets Dosage for dogs (2-3 times a day)
3 kg6 lbs1/4 Tablet
5 kg11 lbs1/2 Tablet
10 kg22 lbs1/2 Tablet
15 kg 33 lbs1 Tablet
20 kg44 lbs1 Tablet
25 kg 55 lbs1 Tablet
30 kg66 lbs1, 1/2 Tablets
35 kg77 lbs1, 1/2 Tablets
40 kg88 lbs2 Tablets
45 kg99 lbs2 Tablets

The Above Imodium Dosage For Dogs chart is based on Imodium A-D EZ Chews, Caplets 2mg.

When to Give a dog Imodium?

If you observe your dog is recently suffering from diarrhea and is in stable condition, then you can try giving your dog a safe dose of Imodium according to the guidelines.

If their symptoms improve after taking Imodium, continue giving them the medication as long as your veterinarian directs.

If their symptoms do not improve or worsen, stop giving them Imodium and contact your veterinarian.

Remember, If your dog is suffering from severe diarrhea (bloody or watery stools), vomiting, or appears to be in pain, do not give them Imodium.

Contact your veterinarian immediately for a medical emergency because such a level of diarrhea needs proper veterinary care to prevent your canine from severe complications.

Imodium Benefits for Dogs

1. Imodium can help to treat diarrhea in dogs.

2. Help to reduce bowel movements.

3. Help a puppy to make stools firmer.

4. Help dogs to relieve abdominal pain and cramping associated with diarrhea.

5. Imodium may help to prevent dehydration by reducing the loss of fluids through diarrhea.

6. It can also be used to treat colitis, irritable bowel syndrome

What are the Side Effects of Imodium in dogs?

The most commonly reported side effects of taking loperamide in canines are:

  • 1. Vomiting
  • 2. Diarrhea
  • 3. Lethargy
  • 4. Flatulence
  • 5. Loss of appetite
  • 6. Constipation
  • 7. Sedation
  • 8. Abdominal pain
  • 9. Intestinal paralysis
  • 10. Pancreatitis

If your pet experiences any of these side effects, please stop giving them Imodium and contact your veterinarian immediately.

Which dogs should not take Imodium?

Dogs with certain health conditions should not take Imodium. These include canines with kidney or liver disease, pets that are pregnant or nursing, and puppies under the age of 8 weeks.

Canines with the MDR1 gene mutation or mixed breed dogs should take medicine with the veterinarian’s advice only.

If you are unsure whether or not your dog should take Imodium, always consult with your veterinarian first.

How much Imodium is lethal to dogs?

As a general rule, a dose of 4-5mg/kg or 2.25-3 mg/lb of loperamide Imodium is lethal to dogs. Overdosing can be fatal. Always offer the medicine with the vet’s advice and keep your pets and children away from any medication in the home.

Imodium overdose in dogs

Overdosing to Imodium can cause serious side effects in dogs, including vomiting, diarrhea, lethargy, and weakness.

If your dog has consumed too much of this medication, it is important to seek professional medical help right away.

Symptoms of Imodium overdose in dogs may include:

  • Severe Vomiting
  • Restlessness
  • Dilatated pupils
  • Sedation
  • Abdominal pain
  • Bloating

If you think your puppy has overdosed on Imodium, contact your veterinarian or emergency animal hospital immediately. Bring a sample of the medication with you if possible.

Treatment for an Imodium overdose will likely be supportive in nature and may include IV fluids and close monitoring. With prompt treatment, most dogs recover completely from an Imodium overdose.

Which drug should not be given to dogs in parallel with Imodium?

Certain drugs can interact with Imodium, making it less effective or cause toxicity. For this reason, it is important to consult with a veterinarian before giving Imodium to a puppy, to make sure that doing so will not negatively interact with any other medications the dog is taking.

Some Tested medicine that can interact with loperamide are:

  • Antibiotics such as (sulfamethoxazole, Erythromycin, Trimethoprim)
  • Monoamine oxidase inhibitors
  • Antihistamines Medications 
  • Antifungals (ketoconazole, itraconazole)
  • Sedation Medications 
  • Certain Heart Medications
  • Other Anti Diarrheal Medications
  • Herbal Medicines Related to the above

How long does it take for Imodium to work in dogs?

The answer to this question depends on the individual dog and the severity of their diarrhea. Generally, Imodium will start to work within 2-4 hours, but it may take up to 24 hours for the full effect to be seen.

If your furry friends’s diarrhea is not improving after 24-48 hours of treatment, or if it worsens, please contact your veterinarian.

What are the most common causes of diarrhea in dogs?

There are many potential causes of diarrhea in dogs, and the most common ones include:

  • 1). Infections (bacterial, viral, or parasitic)
  • 2). Intestinal disorders (such as inflammatory bowel disease or IBD)
  • 3). Dietary indiscretion (eating something that doesn’t agree with them)
  • 4). Stress or anxiety
  • 5). Certain medications or supplements

If your pooch has diarrhea, it’s essential to take them to the vet so they can determine the underlying cause and provide appropriate treatment.

In some cases, diarrhea can signify a severe condition, so it’s always best to err on the side of caution.

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How can you treat your dogs diarrhea Naturally?

1. Avoid processed foods and offer a bland diet instead

If your dog is suffering from diarrhea, avoiding processed foods and offering a bland diet is essential. Processed foods can contain high levels of salt, sugar, and unhealthy fats, making diarrhea worse.

A bland diet of boiled rice and ground chicken is accessible on the stomach and will help to firm up your dog’s stools. Offers firmness without irritation.

You should also ensure your puppy has access to plenty of fresh water to avoid dehydration. If your dog’s diarrhea persists for more than a day or two, or if they are showing signs of dehydration, it’s essential to contact your veterinarian for further guidance.

2. Keep your dog Hydrated

One of the best ways to prevent diarrhea in dogs is to keep them hydrated. This means making sure they have access to clean, fresh water at all times.

If your canine is outdoors, check their water bowl regularly and refill it as needed. You should also consider giving your dog extra water during hot weather or if they are particularly active.

Keeping your pet well-hydrated, you should watch their diet and avoid giving them any table scraps or other foods that might upset their stomach.

If you think your dog may be dehydrated, contact your veterinarian immediately.

3. Add Probiotics to your dog’s diet

Probiotics are live microorganisms that are beneficial to the host animal. They are similar to the naturally occurring microflora in the gut and have several health benefits.

Probiotics for dogs can help to prevent or treat diarrhea by restoring the balance of microflora in the gut. They may also help to improve nutrient absorption, reduce inflammation, and strengthen the immune system.

If your pup is suffering from diarrhea, Adding probiotics to their diet is a simple and effective way to help them feel better.

You can find probiotics in powder form that can be added to your dog’s food or in capsules that can be given orally.

4. Try an Herbal Remedy

Dog diarrhea is a common problem that can have many different causes. While diarrhea can sometimes signify a serious underlying condition, it is often the result of a simple upset stomach.

If your pet has occasional diarrhea, several herbal remedies can help to treat the problem. Chicory root and Slippery elm effectively soothe an upset stomach and promote healthy intestine function.

For canines with chronic diarrhea some Herbal remedies are safe for most dogs, but it is always best to consult your veterinarian before giving your dog any new supplement. With the proper treatment, your dog’s diarrhea should soon be a thing of the past.

5. Consider using medication only as a last resort

When your dog has diarrhea, reaching for the first over-the-counter medication you see can be tempting. However, it’s essential to consider all of your options before resorting to medication.

In many cases, diarrhea is caused by a simple dietary change or upset stomach and will resolve on its own within a day or two. If your pooch is still experiencing diarrhea after a day, it’s time to consult your veterinarian.

They will be able to recommend the best course of treatment, which may include antidiarrheal medication. When selecting an antidiarrheal medication for your dog, it’s essential to choose one that is safe and effective.

With so many products on the market, it can be tough to know which one to choose.

However, your veterinarian can recommend the best option for your pet based on its individual needs.


Can Imodium kill a dog?

Yes, overdosing your dog on Imodium loperamide can be fatal for your pet. Never exceed the safe dosage, and always follow your veterinarian’s advice to avoid any complications.

Is Imodium safe for dogs with pancreatitis?

Imodium loperamide can increase the risk and severity of pancreatitis in dogs. Canine suffering from this health issue should not use loperamide with out vet prescription.

Will Imodium make my dog vomit?

Yes, vomiting is among the adverse effect of loperamide in dogs. Suppose your dog ingests Imodium and vomits. Don’t worry. If mild, stop giving the medicine and contact your vet. However, if your canine is excessively vomiting, take your pet to the vet as soon as possible.

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