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Logic Firm (Was Diar-Stop)

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You save 43%

Logic Firm (Was Diar-Stop)

Diar-Stop is a pharmaceutical grade formulation which helps manage digestive upsets in dogs and cats when the intestines become irritated.
Standard Retail Price £14.80
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  • Delivery Info
  • Reviews (65)

Logic Diar-stop (Previously Diarsanyl Plus)

Diar-Stop is a pharmaceutical grade formulation which helps manage digestive upsets in dogs and cats 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.

Diar-Stop has an easy-to-use syringe and palatable formula that uses Montmorillonite (Coats, protects the intestinal lining/ absorbs toxins), Sodium Magnesium Potassium (to help restore electrolytes lost through diarrhoea), Dextrose (provides an energy source for the small intestine) and Prebiotics (FOS fructo-oligosaccharides) to restore the normal bacterial flora.

Our VetOur 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.'

Delivery Info

Please view our Delivery and Coronavirus pages for the latest updates.

Light (usually non-food) orders under £29 are charged £2.99 postage. Heavy (typically food) orders under £29 are charged £4.49 postage.

For Light items (under 2kg) our standard method is Royal Mail 2nd Class Tracked (there are a few exceptions, so if in doubt check our Delivery page).

To get it faster you can upgrade Light items to Royal Mail 1st Class Tracked or a Guaranteed Courier service, Saturday Courier or even before 12 noon services where available. There's a small fee, but if you're in a hurry they are worth considering. To ensure you receive your items as quickly as possible, please place your order before 12 Noon Monday to Thursday as there is no standard Saturday courier delivery.

Heavy items weighing 2kg and more are sent via courier. Heavy items ordered after 12 Noon Friday, or anytime Saturday and Sunday will be processed as soon as possible during working days.

Please note that if you are purchasing a mix of Light and Heavy items at the same time, these will be sent separately. The Heavy items being sent by Courier, the Light items by Royal Mail 2nd Class Tracked.

All exceptions to these guidelines are noted in the product description.

For more information, view our Delivery page.

Reviews (65)
Independent Customer Feedback

Logic Firm (Was Diar-Stop)

4.8/ 5
(65 customer reviews)
  1. 4
    "It works well but my dog does not like the taste, however she will take it mixed with her dinner."
    Review by Glynis Henville / (Posted on
  2. 4
    "Paste works but my dog does not like the taste"
    Review by Geoffrey Myatt / (Posted on
  3. 5
    "Did the job ! No more soft ones"
    Review by Tony Differ / (Posted on
  4. 5
    Review by david young / (Posted on
  5. 5
    Review by / (Posted on
  6. 5
    "Did the job :) very happy"
    Review by Tony Differ / (Posted on
  7. 4
    "Used before used on my dogs when needed"
    Review by / (Posted on
  8. 5
    "Ordered for one of my dogs."
    Review by Michelle Day / (Posted on
  9. 4
    "This is very good for dogs who have small episodes of loose stools ."
    Review by / (Posted on
  10. 5
    Review by M J DUNN / (Posted on
View all 65 customer reviews