Answer

Thanks for the information. It may be that he just can't handle the dewormer. What did they prescribe it for? Did he have any parasites, or is it just for routine deworming. What is his weight and how much Panacur is he getting? Even with 2 sets of vaccines, it is still possible to catch parvo. The chances are low, and the signs are usually mild, but I have seen it happen. They are not fully protected until at least 3 sets of vaccines. Other causes can include certain intestinal parasites not responsive to Panacur, Giardia, something he ate (new food, new treats, human food, trash, plants), other intesinal viruses or bacterial infections or a gastrointestinal foreign body obstruction. You didn't mention if he was vomiting or not. If so, that would be more a cause for concern. If not vomiting, his gums are pink, he has no abdominal pain (press both hands around abdomen), he is walking around fine and the diarrhea has stopped, you can probably watch him tonight and get him into your vet tomorrow. If you notice any vomiting, more diarrhea, blood in the diarrhea, abdominal pain, pale gums or severe weakness/lethargy, I would consider getting him checked out tonight by your nearest emergency vet. You can try giving him some water orally with a syringe or something similar if he is not drinking much. Please let me know if you have any other questions. Hope this helps.