Logic Firm (Was Diar-Stop)

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You save 46%

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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  • Reviews (56)

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 (56)
Independent Customer Feedback

Logic Firm (Was Diar-Stop)

4.9/ 5
(56 customer reviews)
  1. 5
    Review by M J DUNN / (Posted on
  2. 5
    "Good prices and service 😺"
    Review by Elaine Hardcastle / (Posted on
  3. 4
    "My dog still has upset stomach and has had 5 vet visits but he is now 14"
    Review by / (Posted on
  4. 4
    "Quickly fixes my dogs loose motions."
    Review by / (Posted on
  5. 5
    "Dogs like the product and it works"
    Review by / (Posted on
  6. 5
    "The best thing when either of the dogs have a bad belly."
    Review by Auli Mollberg / (Posted on
  7. 5
    "It worked very well for our dog and it was easy to give the dose. Very happy with this product."
    Review by Julie Pidgen / (Posted on
  8. 4
    "Be great if they could do something with the price of this stuff!"
    Review by Tracey Thorpe / (Posted on
  9. 5
    "Had this product from my vet before and it was safe and easy to use. Very effective cure for dog with upset tummy."
    Review by / (Posted on
  10. 5
    "good service great price fast delv"
    Review by Mark Sutherland / (Posted on
View all 56 customer reviews