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LOGIC® Firm Digestive Support

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SRP £14.80


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LOGIC® Firm Digestive Support helps manage digestive upsets in dogs and cats when the intestines become irritated.

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Product Details

Digestive upsets occur when the intestines become irritated. This can be caused by a sudden change in diet or by eating inappropriate food, e.g. scavenging on a walk or eating from the rubbish bin. It may result in a less pleasant toilet experience for both your pet and you! LOGIC® Firm Digestive Support for Dogs and Cats is a veterinary-grade formulation which helps restore normal digestive function and firm stools.

LOGIC® Firm Digestive Support contains montmorillonite which coats, and protects the intestinal lining, sodium magnesium potassium to help restore electrolytes lost through diarrhoea, dextrose which provides an energy source for the small intestine and prebiotics to help restore the normal bacterial flora.

LOGIC® Firm was previously known as LOGIC® Diar-Stop.


LOGIC® Firm Digestive Support is available in the following sizes:
  • 1 x 10ml Syringe (Small Dogs and Cats 2-7kg)
  • 1 x 24ml Syringe (Medium Dogs 7-30kg)
  • 1 x 60ml Syringe (Large Dogs 30-60kg)

Key Benefits

  • Helps manage digestive upsets in dogs and cats and restores normal digestive function
  • Helps firm stools after a diet change or eating something inappropriate
  • Veterinary strength formula
  • Palatable for both dogs and cats
  • Comes in an easy-to-give syringe ensuring you give your dog the correct amount either directly into the mouth or on top of the food


  • Product Composition
    Montmorillonite, na+ mg2+ and k+ ions, dextrose, probiotics fructo-oligosaccharides

LOGIC® Firm should not be used for more than 3 days. If there has been no change in stools take your pet to the vet for a check-up, as it could be something else causing the upset.

What our vet says

What our vet says
"Logic Firm is a digestive supplement for cases of diarrhoea. It coats the walls of the gut and absorbs any toxins. It also maintains a healthy gut by promoting the growth of good bacteria. If the symptoms go on for longer than a few days, and your pet is really unwell, please see your vet."
John Campbell - Head Veterinary Surgeon (BVM&S BSc MRCVS)
John Campbell Head Veterinary Surgeon And
Co-Founder (BVM&S BSc MRCVS)