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Pet Size

Don't know your pet's weight?

If you can't get them on the scale, try this super simple method:

  1. Weigh yourself.
  2. Weigh yourself holding your pet.
  3. Subtract the two numbers to get their weight.

Too heavy to hold? Your vet will weigh them if you ask (or may already have it on file if you call).


No Prescription Required

  • Description

    Gut health is as important for pets as it is for us, and Fortiflora from Purina is an excellent pet probiotics supplement for dogs and cats. It can just as accurately be referred to as a digestive health supplement for pets, and Fortiflora is proud to be the #1 recommended pet probiotic for veterinarians. Both Fortiflora for dogs and Fortiflora for cats also work to promote better immune system health for pets, and even improve the waste elimination process and reduce flatulence for dogs and cats.

    Buy Fortiflora online from World Pet Express and get the best price on this pet probiotic.


    For dogs and cats of any size, add one sachet of Fortiflora powder to their food with a meal. In the treatment stage (first 2 weeks) it is recommended to give them one sachet every day, but starting with maintenance following the first 2 weeks you can give your pet Fortiflora 2 or 3 times a week if they seem to be experiencing better digestive health.


    The active ingredients in Fortiflora are Enterococcus faecium SF68, L-ascorbyl-2- polyphosphate (Source of Vitamin C), Vitamin E, Zinc proteinate, Beta-carotene, Manganese proteinate, Ferrous sulfate, Copper proteinate, Calcium iodate, Sodium selenite.

    Inactive ingredients include animal digest, brewers yeast, and sodium chloride.


    Fortiflora is an excellent gastrointestinal health supplement for pets, but it is only to be administered with one sachet per serving at any given time. Exceeding these guidelines can cause an opposite imbalance in gut flora for your pet and lead to further complications.

    Some pets with weakened immune systems will be better off avoiding Fortiflora. Speak with your veterinarian if this applies to your dog or cat.

    Always follow the guidelines directly as shown on the packaging.


    There are no known contraindications or known interactions between Fortiflora and any drugs or other pet health supplements.

    Side Effects

    Use of Fortiflora may result in the following side effects, but only if the dosage limits are exceeded in the majority of instances:

    • • Diarrhea
    • • Nausea
    • • Vomiting

    Product Code : 12582