However, when you give your dog a deworming medication, the adult worms and protozoans living in your dog's intestines are killed. This causes them to release their grip on your puppy's intestinal tract, and they're ultimately expelled via the anus. This side effects of deworming a puppy can be a bit startling.
After deworming, puppies can suffer some side effects such as lack of appetite, gastrointestinal upset, or vomiting. Some dewormer medications will dissolve the worms in the dog's intestinal system, while others will paralyze them.
Puppies with a large number of parasites (high worm burden) may become ill after treatment. Imagine all of the parasites in the intestines all dying at once, the lining of the intestines become inflamed, causing diarrhea, vomiting and lack of appetite.
Is it normal for a puppy to have diarrhea after getting a dewormer treatment? It can cause some diarrhea as the dying worms release some toxins.
I can only think of a few things that would take a puppy down that fast and that. of my pups have gone off colour or developed the runs after worming which is .
