Managing Diarrhea

To start this conversation: If your dog or cat is depressed, or the appetite and drinking is compromised: “Get. On. My. Table!”

The following article / information is not a substitute for visiting the vet if your dog or cat has diarrhea. There are many things that can cause diarrhea in dogs and cats and some of them are fatal. Sometime, diarrhea means the pet is in the process of dying. So staying home with Loperamide is sometimes a “grave” mistake, pardon the pun.

To start this conversation: If your dog or cat is depressed, or appetite and drinking is compromised: “Get. On. My. Table!”


Any of the above are signals that you need a vet, not Immodium.

Sometimes your healthy-aged dog is happily bouncing around with diarrhea after a trip to the parent’s house where they gave some table scraps. Or, some workers came to the house and stressed her out so she’s got some “stress bowel” or maybe a trip to the kennel which can also set up “stress bowel”

What’s Stress Bowel?

So  a dog gets stressed and the stomach starts churning, and churning out more acid than normal. And that acid overflows the stomach and gets all the way into the intestines and burns the intestines. Stress Bowel.

Sometimes the dog just ate something out of the ordinary and some ‘bad’ bacteria grew up, disrupting normal gut function and biology. Diarrhea results.

When Can You Consider Waiting or Managing Diarrhea?

  1. Dog is eating
  2. Dog is drinking
  3. Dog acts normal (so important)
  4. Dog’s not vomiting
  5. Dog’s not bloating
  6. There’s no bloody poop or vomit

So, if your dog doesn’t have ANY of the above signalment for a trip to the vet you can TRY some of the following.

Loperamide 2mg – That’s one caplet of “Immodium” but make sure it’s “Active Ingredient Loperamide 2mg” and NOTHING extra. And the dose [dogs only] is 1 caplet per twenty pounds, once or twice a day. So if the dog was forty pounds it would get two caplets. And if you saw diarrhea within 12 hours of that dose, go ahead and re-dose.

Hard cheese. If you can break the cheese, it’s a hard cheese. If it can crumble or be cracked, broken instead of bending or stretching, it’s the “right cheese” and a dog would get a bit, about the size of a pat of butter per ten pounds once or twice a day. You’d think a bit of cheese would push a lactose button but it actually binds.

No food, or bland food. For diarrhea I really like Campbell’s Chicken Noodle Soup on a piece of white bread. All that’s super light on the intestine and requires no “work”,

Yogurt. A decent quality yogurt with “live yogurt cultures” is just okay and I say “Sure, why not.” It used to be the best we had to offer and it’s okay. That’d be a tablespoon per twenty pounds twice a day to help keep the GI tract beneficial bacteria ‘in power’ while bad bacteria are being fought off.

Pumpkin. Soluble fiber can help move a hard stool back to limber, but also a loose stool back to formed. The dose is 1 kitchen measuring cup per sixty pounds.  So to dose a thirty pound dog you’d give 1/2 kitchen cup, and so on. You can offer Pumpkin twice a day. It’s plain, canned pumpkin, like Libby’s.

Other stuff I really like to use for diarrhea BUT which you can’t get over the counter is Metronidazole and Propectalin.

Pepto Bismol is of limited benefit to diarrhea in dogs and cats and can cause more trouble than help.

So this is all well-and-good but diarrhea can be VERY serious, so take me seriously when I say that diarrhea that lasts days, or is accompanied by a loss of appetite, depression, not-drinking, or blood in the vomit or diarrhea, swollen belly – are all serious. It can be something other than a little upset stomach or stress bowel. It may be WAYYYYY beyond the above management.

So what ELSE could it be?

  • Giardia (Common)
  • Bacterial gastroenteritis (Common)
  • Worms (Common)
  • Kidney failure (Over 10)
  • Liver failure (Over 10)
  • Pancreatitis (Common)
  • Poisoning
  • Salmonellosis (rare)
  • Coccidia
  • Addison’s Disease (rare)
  • Hemorrhagic Gastroenteritis (You’d see blood)



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