Purina Pro Plan Veterinary Diets FortiFlora Chewable Tablets Digestive Supplement for Dogs

By Purina Pro Plan Veterinary Diets
Rated 4.4372 out of 5 stars

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$80.99Chewy Price
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Top IngredientsWhey, Dextrose, Organic Gum Arabic...Dried Lactobacillus Reuteri Fermentation Product, Microcrystalline Cellulose, Dextrose...Brewer's Dried Yeast, Glycerin, Dried Potato Product...Pumpkin Seed Powder, Beef Broth Powder, Jeruselem Artichoke Powder...Fructooligosaccharides, Dried Lactobacillus Acidophilus Fermentation Product, Dried Lactobacillus Casei Fermentation Product...
Breed SizeExtra Small Breeds, Small Breeds, Medium Breeds...Extra Small Breeds, Small Breeds, Medium Breeds...Extra Small Breeds, Small Breeds, Medium Breeds...Small Breeds, Medium Breeds, Large BreedsSmall Breeds, Medium Breeds, Large Breeds
Health FeatureDigestive Health, Immune SupportDigestive Health, Immune SupportDigestive HealthDental & Breath Care, Digestive Health, Immune Support...Digestive Health, Immune Support
LifestageAdultAdult, SeniorPuppy, Adult, SeniorPuppy, Adult, SeniorPuppy, Adult, Senior
Food FlavorMeat, BeefUnflavoredUnflavoredMeat, Beef
Special DietNon-GMOGluten Free, Grain-Free, Human-Grade...
Food FormSupplementSupplementSupplementFood Topping, Powder, SupplementSupplement

About This Item


  • Great-tasting chewable probiotic supplement for dogs.
  • Crafted in collaboration with nutritionists, researchers and veterinarians.
  • Developed using a proprietary microencapsulation process for enhanced stability.
  • Specially formulated to promote normal intestinal microflora in dogs suffering from diarrhea.
  • Contains live microorganisms to help increase levels of beneficial intestinal bacteria.

See More

Nutritional Information

Feeding Instructions


Play Video: Learn More About Purina Pro Plan Veterinary Diets From Our Team of Experts
Learn More About Purina Pro Plan Veterinary Diets From Our Team of Experts

Looking for the powder form? [Shop FortiFlora Probiotic Gastrointestinal Support Dog Supplement] (https://www.chewy.com/purina-pro-plan-veterinary-diets/dp/50029).

About Purina Pro Plan Veterinary Diet Therapeutic Nutrition

Targeted Therapeutic Nutrition

Purina Pro Plan Veterinary Diets has developed a wide range of formulas with targeted nutrition for dogs who have specific conditions. From dental or critical care to breakthrough diets for dogs with joint or cognitive issues, each formula provides advanced nutrition, from a name you know and trust.

Easy to Administer

Each supplement was designed to be effective and easy to give your pet via powder sachets or chewable tablets.

Made by Experts

Pro Plan Veterinary Supplements are developed by a collaborative network of scientists, veterinarians and nutritionists.

Exceptional Quality

In a typical shift, Purina conducts 400+ quality checks on ingredients, packaging, receiving, processing, and packing.

Responsible Sourcing

Each ingredient can be traced back to its trusted supplier, so quality may be evaluated all the way back to the source.

About Purina Pro Plan Veterinary Supplements

Purina Pro Plan Veterinary Supplements is committed to the health of every pet, especially those with unique needs. These advanced supplements are backed by decades of research and supported by a global network of scientists. This knowledge and experience have laid the groundwork for innovative supplements that are trusted by pet owners and veterinary professionals alike.

Shop Purina Pro Plan

Questions & Answers

22 Customer Questions

Is dosage (no. of tablets the same no matter size or breed of dog
Answer by ChewyMar 11, 2020
The dosage of this supplement does not depend on the weight or breed of your dog. Feed one tablet to your dog daily under the supervision or direction of your veterinarian.

Is this safe for puppies?
Answer by ChewyAug 06, 2020
This supplement has been formulated for adult dogs.

Should it be refrigerated after opening?
Answer by ChewyMar 22, 2021
This supplement does not require refrigeration. It should be kept in a cool dry place.

why do the chew tabs contain ash and the packets don't?
Answer by ChewyMar 10, 2021
All foods will have ash. This is not an ingredient. Ash is what is left over after a product is cooked at very high temperatures, which destroys the organic material (proteins, fats and carbohydrates), and leaves behind the inorganic, non-combustible minerals known as ash.

ReviewsWrite a Review

Rated 4.4372 out of 5 stars
183 Ratings
Would recommend to a friend

183 Customer Reviews

Rated 3 out of 5 stars
By Kaleigh on Sep 13, 2023

Beware with chicken allergies

The "liver flavor" in these probiotics is sourced from chicken. I had to do a bit further investigating after my dog had a colitis flare up after starting these when his other probiotic was out of stock for awhile. He is allergic to chicken and these caused diarrhea. For being a product mainly used for dogs with sensitive stomachs, I wish Purina would be a bit more thorough in their list of ingredients.

Rated 5 out of 5 stars
By Mara on Aug 31, 2023

FortiFlex Purina Pro Plan Tablets

My Doberman started a more rapid recovery on this Probiotic from diarrhea. Mt vet sold me the small packets, which did nothing for him. Hes 86 lbs. He gets 2 pills in the AM and 2 pills at dinner. it is making a difference in his really difficult case. He was a street dog.

Rated 2 out of 5 stars
By WallaWallakids on Aug 29, 2023

Expires too soon

I love this product. It really helps my dog but Chewy sent me a 90 day container that expires in 100 days. I unfortunately already had a container opened so this will expire before they get used. Just wish I had received a product with a better date.

Rated 3 out of 5 stars
By Brad on Aug 25, 2023


After trying several different foods to unsuccessfully remedy our dog's chronic diarrhea, bought a bottle with the hope that a probiotic supplement would be the missing element. He takes it no problem but after about a month of use I see no noticeable improvement.

Rated 1 out of 5 stars
By Rex on Jul 21, 2023

Something is wrong

Rex has been using Purina Fortiflora for the past 2 years. This was the first time we ordered them from Chewy. 2 days in a row he has refused them. I am not sure if they became bad in transient- maybe not as fresh, or was in the heat too long waiting for delivery. Something to consider I suppose when ordering products in the dead of summer. Unfortunately, I don't think I'll be using this bottle of pills.

Rated 5 out of 5 stars
By Quincy on Jul 4, 2023

Just what my pup needed!

This has regulated my pupper so well! And his poop is more formed and easier to pick up. He loves his after walkies treat and will always do a trick to get one. The chews are so much better than the powder as I have a slow feeder so therefore I was never sure if he actually got all the powder or not.

Rated 5 out of 5 stars
By GSDMom on Jun 24, 2023

Highly Recommend

Our German Shepherd Dog has a sensitive stomach so we give her FortiFlora with any medications to avoid diarrhea. Recently, we were out (and so were the local stores) when she ate something that did not agree with her (we think it was the cat's food) and our girl ended up in the doggie ER for dehydration. Our girl's trainer first introduced us to FortiFlora and we will not be without it again.

Rated 5 out of 5 stars
By Ann on Jun 3, 2023

Recommended by our vet

Our vet instructed us that FortiFlora was the best choice for probiotics being specifically developed for a dog's needs. The chewable tablets are the perfect answer for our senior dog. He LOVES the way they taste because he gets excited when I let him smell the bottle beforehand. I think he thinks it's a special cookie because he looks around to see if I am going to give him another. His stool has also improved.

Rated 5 out of 5 stars
By Bearguide on Apr 25, 2023

It works for me

I’ve tried so many probiotic products to firm up my three male Labradors poop but nothing worked until I used FortiFlora. My one lab would start to poop firm but it turn very soft or he would poop 3-4 times in a row mushy but within about 4 days of taking this product he’s firm and regular. My other two pups have sensitive stomachs and probiotics gave them diarrhea instead of firming them up, not the issue with FortiFlora. Pills are easy to give just throw one their food bowl in the morning and your good to go. Finally something that works.

Rated 5 out of 5 stars
By Jesse on Jul 25, 2023

Solid poo

I really believe this product is helping my 15 year old dog with liver cancer. He’s having a lot less loose stool and that makes everyone happy.