Dog Behaviors After Deworming


Negative Dog Behaviors After Deworming Should Not Worry You

A dog with worms is a sad dog because the worms cause him a lot of discomforts. Deworming your dog will greatly ease his discomfort but you will need to keep an eye out for any negative dog behavior after deworming that may arise. Fortunately, the typical behavior of dogs after deworming is a sign that the medicine has worked and that your dog will be free from the parasites and can now enjoy good health. Your local vet can give you information on the type of dog behaviors after deworming to expect and the best way to handle them.

Using Traditional and Conventional Treatments

Usually, vets try to use the less toxic and invasive medicines as a general rule of medical treatment, this is called traditional medicine, and normally they use anthelmintics like ivermectin, fenbendazole, praziquantel, pyrantel pamoate, milbemycin oxime, etc. Sometimes they use combined formulations when treatment needs to target more of one species of worms. Most of the times dogs do not present side effects to these treatments, but some times dog behaviors can change.

 Expected Dog Behaviors After Deworming

1. Upset Stomach: A common symptom that is easy to identify is an upset stomach. Your dog could vomit a little, experience a bit of diarrhea, or discomfort in his stomach. If you observe any of these listed dog behaviors after deworming occurring excessively, consult with your vet for further advice. Do not be alarmed when you spot worms in your dog’s vomit or stool as it is a confirmation that the medicine is working.

2. Lack of EnergySome medications administered to eliminate worms may result in a temporary lethargic type of behavior of dogs after deworming. Any extended periods of lack of energy should be reported to your vet immediately as this type of dog behavior after deworming should usually only last about 48 hours following treatment.

3. Poor AppetiteRight next to upset stomach dog behaviors after deworming, is poor appetite. With the worms reacting to the medication and wanting to find a way out of your dog’s stomach, it is likely that your dog will be reluctant to eat much. Thankfully this particular behavior of dogs after deworming will be short-lived and your dog will get her normal appetite back.

4. Full Of EnergyThere are positive dog behaviors after deworming that can be observed once the negative behaviors have run their course. Where your dog previously appeared sickly and malnourished because of the worms it was carrying around, she will now have a new lease of life. Your dog will now be healthy and full of energy.

5. Business As UsualThe degree of negative dog behaviors after deworming may depend on your dog’s reaction to the medication or the degree of worm infestation he has experienced. If you are fortunate, your dog may not show any change in dog behavior patterns following deworming. All the same, keep your pet under close observation in case of anything.

Utilizing Holistic or Homeopathic Alternatives (Non-traditional treatments)

There is a lot of discussion about this topic, but there is the definition that traditional dewormers are based on synthetic chemical substances including pesticides containing toxins and toxins and carcinogens. These chemical-based products have the effect to suppress the immune system and harm the health of the dog in the long term.

By using homeopathic, natural or holistic alternatives, the exposure to toxicity and disease agents can be reduced dramatically helping to maintain the immune system of your dog strong and healthy.

Some holistic dewormers to use as an alternative are Wormwood (herbal remedy), carrots, clove (limited and controlled), Diatomaceous earth (Food DE grade), drops of Oregon grape, apple cider vinegar, etc.

You can find also natural pet products in the market like Natural Pet Dewormer recommended by some veterinarians for the treatment and prevention of worms like the spinworm, roundworm, giardia, tapeworm, whipworm, and ringworm.

Also, remember that a good diet is very important to improve the health of your dog. Check this post if you want to learn about what type of food your dog should never eat.

Managing Dog Behaviors After Deworming

Once you suspect and/or confirm that your dog has worms, she has to be dewormed. To be in a better position to manage any negative post-deworming behavior in dogs, consult your vet on what to expect. Your vet should advise you on the best dewormer to be used on your dog, and the anticipated after-effects. Avoid deworming your pet using over the counter medication. Allow your vet to administer the treatment as they will be in a better position to handle any adverse side effects caused by the medication.

Dr. Winnie
About Dr. Winnie 1229 Articles
My name is Dr. Winnie. I earned a Bachelor of Science in Psychology from Duke University, a Masters of Science in Biology from St Georges University, and graduated from the University of Pretoria Veterinary School in South Africa. I have been an animal lover and owners all my life having owned a Rottweiler named Duke, a Pekingese named Athena and now a Bull Mastiff named George, also known as big G! I'm also an amateur equestrian and love working with horses. I'm a full-time Veterinarian in South Africa specializing in internal medicine for large breed dogs. I enjoy spending time with my husband, 2 kids and Big G in my free time. Author and Contribturor at SeniorTailWaggers, A Love of Rottweilers, DogsCatsPets and TheDogsBone


  1. I wormed my dog ( a staffy ) yesterdAy, today he has been sick a few times, stools are normal also he is very restless, cries, think hes got tummy ache. Any home advice??

  2. Gave my 7 week old pup dewormer . Now hes throwing up non stop and threw up a long worm. Hes sleeping now but i know he doesnt feel well is this normal?

  3. My dog is not eating any thing what we are feeding it (we are feeding puppy starter, dog biscuits) so what to do for feeding at is too lazy and sleeping every time

  4. I just gave my baby chihuahua his first dewormer je just threw it up. Is that normal, is he going to be ok

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.