Cat Supplies

The Best Antidiarrheal Medications

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Our picks are based on Amazon bestseller rankings, verified customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

Diarrhea in cats can be distressing for both pets and owners. Understanding the causes and choosing the appropriate medication is crucial for your cat's comfort and recovery. This guide will help you navigate the options available for managing feline digestive upset.

No. 1
Amazon Basic Care Loperamide Hydrochloride Tablets, 2 mg, Anti-Diarrheal, 24 Count (Pack of 1)
  • ACTIVE INGREDIENT: This product contains Loperamide Hydrochloride 2 mg, an anti-diarrheal. Compare to the active ingredient in Imodium A-D
  • TRAVELERS' DIARRHEA: This anti-diarrheal medicine controls symptoms of diarrhea, including Travelers' Diarrhea
  • CAPSULE-SHAPED TABLETS: These anti-diarrheal caplets are capsule-shaped tablets, for diarrhea control
  • WITH AN ANTI-DIARRHEAL medicine, these caplets may used by adults and children age 6 years and older. Important: Retain carton for complete uses, directions and warnings
  • GLUTEN FREE: Amazon Basic Care Loperamide Hydrochloride Tablets, 2 mg is a gluten free option for an anti-diarrheal medicine when you need to control symptoms of diarrhea, including Traveler's diarrhea
  • Product may be manufactured in India or U.S.
No. 2
Amazon Basic Care Loperamide Hcl 2 Mg Softgels, Anti-Diarrheal, Easy to Swallow, Controls Symptoms of...
  • ACTIVE INGREDIENT: A+ Health Loperamide Hcl 2mg softgels are an anti-diarrheal which compares to the active ingredient in Imodium A-D
  • CONTROLS DIARRHEA: Helps to control the symptoms of diarrhea, including Travelers' Diarrhea
  • EASY TO SWALLOW SOFTGELS: Proudly using ingredients originating from various countries, these Loperamide Hcl 2mg softgels are liquid-filled capsules which can be easier to take for people who have difficulty swallowing
  • FOR ADULTS AND CHILDREN 12+: Suitable for adults and children 12 years and older; contains 24 softgels
  • DIRECTIONS: In addition to drinking plenty of clear fluids, adults and children 12 years and older: take 2 softgels after the first loose stool; 1 softgel after each subsequent loose stool; but no more than 4 softgels in 24 hours
No. 3
Amazon Basic Care Loperamide Hydrochloride Tablets,2 mg,Anti-Diarrheal,(Packaging May Vary),24 Count (Pack of...
  • The information below is per-pack only
  • ACTIVE INGREDIENT: This product contains Loperamide Hydrochloride 2 mg, an anti-diarrheal. Compare to the active ingredient in Imodium A-D
  • TRAVELERS' DIARRHEA: This anti-diarrheal medicine controls symptoms of diarrhea, including Travelers' Diarrhea
  • CAPSULE-SHAPED TABLETS: These anti-diarrheal caplets are capsule-shaped tablets, for diarrhea control
  • WITH AN ANTI-DIARRHEAL medicine, these caplets may used by adults and children age 6 years and older. Important: Retain carton for complete uses, directions and warnings
  • GLUTEN FREE: Amazon Basic Care Loperamide Hydrochloride Tablets, 2 mg is a gluten free option for an anti-diarrheal medicine when you need to control symptoms of diarrhea, including Traveler's diarrhea
  • Product may be manufactured in India or U.S.
SaleNo. 4
Imodium A-D Anti-Diarrheal Softgels with 2mg Loperamide Hydrochloride for Fast Acting Diarrhea Symptom Relief...
  • For when the unexpected happens: Just one dose of Imodium Anti-Diarrheal Loperamide Softgels start to work within one hour to calm the chaos of diarrhea symptoms so you don’t have to worry
  • Fast and effective diarrhea relief: No other OTC brand of anti diarrhea softgels is faster for controlling symptoms due to acute traveler's diarrhea; **starts to work within one hour
  • Powered by loperamide: Helps slow your system, so body can start absorbing fluids and salts that restore stool consistency; helps you recover from diarrhea up to 2x faster compared to no treatment*
  • Travel size for purses, gym bags, and carry-ons: Imodium Softgels can be taken on the go, are suitable for children ages 12 and up, FSA and HSA eligible, and recommended by doctors for over 20 years
  • When diarrhea symptoms strike: Take 2 Imodium Softgels initially, followed by 1 Softgel as required after each loose bowel movement; no more than 4 Softgels in 24 hours *Median time to last unformed stool for loperamide vs placebo
SaleNo. 5
Imodium Multi-Symptom Anti-Diarrheal Caplets with 2mg Loperamide Hydrochloride and Simethicone for Fast Acting...
  • When the unexpected happens: Just one dose of Imodium Multi Symptom Anti-Diarrheal starts to work in one hour to calm the chaos of diarrhea plus cramps, gas, and bloating so you don’t have to worry
  • Our most complete diarrhea relief: No other OTC brand of anti diarrhea pills combines two powerful ingredients; works 33% faster than loperamide alone; up to 4x faster compared to no treatment*
  • Dual-powered multi-symptom relief: 2mg loperamide restores gut’s rhythm and helps retain nutrients that restore stool consistency; 125mg simethicone helps treat symptoms of bloating, pressure, gas and cramps
  • Travel size for purses, gym bags, and carry-ons: Imodium Caplets can be taken with water, are suitable for children ages 6 and up, FSA and HSA eligible, and recommended by doctors for over 20 years
  • When diarrhea symptoms strike: Take 2 Imodium Caplets initially, followed by 1 Caplet as required after each loose bowel movement; no more than 4 Caplets in 24 hours *Median time to last unformed stool for loperamide vs placebo
SaleNo. 6
Imodium A-D Diarrhea Relief Caplets with Loperamide HCl, Anti Diarrheal Medicine to Help Control Symptoms of...
  • For when the unexpected happens: Just one dose of Imodium Anti-Diarrheal Loperamide Caplets start to work within one hour to calm the chaos of diarrhea symptoms so you don’t have to worry
  • Fast and effective diarrhea relief: No other OTC brand of anti diarrhea pills is faster for relieving and controlling symptoms due to acute Traveler's diarrhea; **starts to work within one hour
  • Powered by loperamide: Helps slow your system, so body can start absorbing fluids and salts that restore stool consistency; helps you recover from diarrhea up to 2x faster compared to no treatment*
  • Travel size for purses, gym bags, and carry-ons: Imodium Caplets can be taken on the go, are suitable for children ages 6 and up, FSA and HSA eligible, and recommended by doctors for overs 20 years
  • When diarrhea symptoms strike: Take 2 Imodium Caplets initially, followed by 1 Caplet as required after each loose bowel movement; no more than 4 Caplets in 24 hours *Median time to last unformed stool for loperamide vs placebo
No. 7
Amazon Basic Care Loperamide Hydrochloride Oral Solution, 1 mg per 7.5 ml, Anti-Diarrheal Medicine...
  • ACTIVE INGREDIENT: This product contains Loperamide Hydrochloride 1 mg per 7.5 mL, an anti-diarrheal which compares to the active ingredient in Imodium A-D.
  • TRAVELERS' DIARRHEA: This anti-diarrheal medicine controls symptoms of diarrhea, including Travelers' Diarrhea.
  • MINT FLAVOR: Amazon Basic Care Loperamide Hydrochloride Oral Solution, 1 mg per 7.5 mL, is a gluten free mint flavored liquid that will help control symptoms of diarrhea. A convenient dosage cup is included.
  • DIARRHEA FACTS: Diarrhea is loose, watery stools (bowel movements) which occurs three or more times a day. It usually lasts one to two days, but it may last longer.
  • DEHYDRATION: Diarrhea can cause dehydration, which means that your body does not have enough fluid to work properly. An anti-diarrheal like Amazon Basic Care Loperamide Hydrochloride Oral Solution, 1 mg per 7.5 mL can help control diarrhea symptoms.
SaleNo. 8
Kaopectate Multi-Symptom Anti-Diarrheal & Upset Stomach Reliever, 42 Caplets, Anti Diarrhea Caplets
  • CALM UPSET STOMACH: Diarrhea medication for adults and children ages 12+ delivers relief for stomach upset, nausea, indigestion, gas & more; you can trust the calm, soothing relief that starts with your first dose of Kaopectate Multi-Symptom Relief
  • EASY, ON-THE-GO RELIEF: Diarrhea & upset stomach can strike anywhere, so grab Kaopectate caplets that go everywhere; our convenient caplets offer quick, multi-symptom stomach relief you can take anywhere
  • SEVEN SYMPTOM RELIEF: Kaopectate liquids & caplets offer quick, temporary upset stomach relief for adults and children ages 12+ from seven types of stomach discomfort, including traveler's diarrhea, heartburn, nausea, gas, & indigestion relief
  • TRUSTED FORMULA: Kaopectate liquid & caplet products are formulated with Bismuth subsalicylate, a trusted antacid and anti diarrhea medicine ingredient proven to help relieve temporary stomach and GI discomfort.
  • TARGETS SOURCE: Kaopectate offers medical anti diarrheal solutions to relieve symptoms of nausea, gas, indigestion, diarrhea, upset stomach, & heartburn; try our liquid & caplet medicines for GI discomfort relief
  • GLP-1 JOURNEYS: When digestion feels off during your GLP-1 journey, try Kaopectate. Ask your doctor if Kaopectate is right for your diarrhea and upset stomach.
No. 9
Medtrition Banatrol® Natural Anti-Diarrheal with Prebiotics, Relief from Chronic Diarrhea, IBS, Recurring...
  • STOPS DIARRHEA AND LOOSE STOOLS FAST- Banatrol Plus stops diarrhea without causing constipation so you can resume your daily life without the worry of knowing where the closest restroom is.
  • CLINICALLY PROVEN MEDICAL FOOD- For over 15 years Banatrol Plus has been recommended by medical professionals worldwide for the daily management of diarrhea associated with IBS, food poisoning, stomach bugs, traveler’s diarrhea, flu,C. Diff, and...
  • #1 NATURAL ANTI DIARRHEAL WITH PREBIOTICS- Contains clinically proven prebiotics that effectively increase gut health in as few as 7 days.
  • DIARRHEA FROM ONCOLOGY TREATMENT- Banatrol Plus is recommended by Dietitians and Clinical Nutritionists for the treatment of diarrhea caused from the side effects of oncology treatments.
  • SAFE FOR KIDS- Can be used daily by all adults and children 4 years and older. It is safer than most anti diarrheal pills.
No. 10
Amazon Basic Care Loperamide Hydrochloride 2 mg and Simethicone 125 mg Tablets, Multi-Symptom Relief...
  • ACTIVE INGREDIENTS: This product contains loperamide hydrochloride 2 mg, anti-diarrheal, and simethicone 125 mg, anti-gas, which compares to the active ingredients of Imodium Multi-Symptom Relief.
  • MULTI-SYMPTOM RELIEF: This anti-diarrheal and anti-gas medicine relieves symptoms of diarrhea plus bloating, pressure and cramps, commonly referred to as gas.
  • WHAT IS DIARRHEA: Diarrhea is a loose and watery bowel movement and very common as many people may have it once or twice a year. Usually not serious, it will typically last two or three days and is normally treated with an over-the-counter medication.
  • DIARRHEA FACT: Properly washing hands can help eliminate the spread of infection that causes a serious type of diarrhea.
  • HELP PREVENT DEHYDRATION: Drink plenty of clear fluids to help prevent dehydration caused by diarrhea.

Last update on 2026-07-18 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best Antidiarrheal Medications

Consult Your Veterinarian

Before administering any antidiarrheal medication to your cat, it is essential to consult with a veterinarian. They can diagnose the underlying cause of the diarrhea, which could range from dietary indiscretions to more serious health issues. A vet's advice ensures you choose the safest and most effective treatment for your specific pet's condition.

Active Ingredients and Dosage

Antidiarrheal medications for cats often contain active ingredients like kaolin, pectin, or bismuth subsalicylate. Different products have varying strengths and formulations. Always follow the dosage instructions provided by your veterinarian or the product packaging precisely. Over- or under-dosing can be ineffective or even harmful.

Formulation and Ease of Administration

Antidiarrheals come in various forms, including liquids, powders, and chews. Consider which formulation will be easiest for you to administer to your cat. Some cats are particular about taste or texture, so choosing a palatable option can make treatment much smoother. Read reviews to gauge how well other cat owners have succeeded in administering the product.

Frequently Asked Questions

When should I see a veterinarian for my cat's diarrhea?
You should see a veterinarian if your cat's diarrhea is severe, lasts for more than 24-48 hours, or is accompanied by other symptoms like vomiting, lethargy, or loss of appetite. Sudden onset of bloody diarrhea also warrants immediate veterinary attention.
Can I give my cat human antidiarrheal medication?
It is strongly advised not to give your cat human antidiarrheal medication unless specifically directed by a veterinarian. Many human medications contain ingredients that are toxic to cats, even in small doses.
How long does it typically take for antidiarrheals to work?
The time it takes for antidiarrheal medication to work can vary depending on the cause and severity of the diarrhea, as well as the specific product used. Some cats may show improvement within 24 hours, while others may require longer treatment.
Are there any side effects of antidiarrheal medications for cats?
While generally safe when used as directed, some medications can cause side effects such as constipation, lethargy, or changes in appetite. It is important to monitor your cat for any adverse reactions and report them to your veterinarian.