Why is my puppy's diarrhea returning after hookworm treatment?

Usually few days. I would recommend to start feeding with a bland diet based on boiled chicken and rice in small portion every 6 hours for the following 48hours. Then gradually reintroduce the normal diet over 5 days. I would definitively recommend a veterinary check up if the signs persist or you notice vomiting, lethargy or inappetence. Please do not hesitate to contact us again on the forum or by requesting a consultation (where you can post pictures ) if you have any more questions or to discuss it any further.

Diarrhea can be normal after Immiticide injections, especially if he is also currently on steroids (often used concurrently to reduce inflammation and chances of embolisms). You should worry if you see signs of coughing, extreme lethargy, pale gums, not eating, or any random bleeding episodes. Other than that a little loose stool is not very concerning for a severe reaction. You can try a bland diet of boiled plain chicken and rice or cottage cheese tonight to help settle the stomach. If the diarrhea continues past 12-24 hrs then antibiotics +/- probiotics may be prescribed by your vet to help get the intestinal flora back to normal status.

That sounds like the correct dose of pyrantel. I don't know if Billy is not eating because of taking the pyrantel or not. Some diarrhea while treating for worms is expected. Unless the diarrhea is extremely water I would not overly worried about dehydration especially since he is drinking water. I would, however, be worried about a puppy that doesn't eat for longer than 48 hours. I suggest you call your vet for more advice.

These signs could be compatible with a colitis, which is an inflammation of the last part of the colon possibly secondary to the parasite infection, usually related to dietary indiscretion. As a first approach, I would suggest to start feeding with a bland diet based on boiled chicken and rice in small portion every 6 hours for the following 48hours. Then gradually reintroduce the normal diet over 5 days. I would definitively recommend a veterinary check up if the signs persist or you notice vomiting, lethargy or inappetence. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

Your puppy may have to take a second round of wormer approximately 2 to three weeks after the first. Considering your puppy was severely infected with round worms (if you can see them= severe infection) these worms likely laid a lot of eggs which now have turned into larvae/worms and were not hit by the first round of the wormer. This should then hopefully alleviate the diarrhea.

It is normal to see some diarrhea and little lethargy after giving a [deworming treatment](https://www.petcoach.co/article/deworming-your-dog-what-to-expect). You may or may not see worms in his diarrhea. The side effects of the diarrhea and lethargy should only last 24-48 hours after giving the worming treatment. If they continue longer than that, or if Kiba becomes lethargic or refuses to eat or drink, you should take him into your vet for an exam.

Poor Jo, she sounds very uncomfortable! Impaction and constipation can occur following bowel upsets and also with partial bowel obstruction. I recommend a quick recheck by your vet, they may want to do an abdominal xray to rule out any bowel obstruction or twists which are preventing normal bowel motion. An enema and further laxatives and fiber supplements may be required