Why is my puppy sick, not eating or drinking after his shots?
Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | unneutered | 2 months and 2 days old | 5 lbs
I have this male puppy named Charlie. He hasn’t been feeling very well. He was throwing up Friday but I gave him his shots Saturday and wormed him and he hasn’t thrown up or nothing anymore the throw up was just like spit tho. He’s lost a lot of weight and is just laying around tho and won’t eat or drink since Saturday!?? What can I do or give him to help???
4 Answers
Most Helpful Answer
Published on November 20th, 2017
Poor guy. It sounds like he may be experiencing a severe vaccin reaction. We treat these with a steroid shot and antihistamine shot. You will need to take him to your vet for treatment for this. B/c of the severity of his condition it is unlikely anything over the counter will help him recover. He also should be tested for parvovirus since he is so young and this is likely his first vaccination. You can try force feeding him some boiled plain chicken and rice or cottage cheese and 1-2 tsp of honey or karo syrup to keep his blood sugar up, until you can get him seen. I hope that your pet Charlie is able to make a full and speedy recovery. Best of luck and take care.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on September 18th, 2017
Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Benny! I think Benny maybe having a reaction to the vaccine. Vomiting and diarrhea can be symptoms of a reaction. Since it is getting worse and it's been 2 days I recommend having him see by your Vet. Usually for vaccine reactions steroids and antihistamines are given. They also may want to prescribe antacids and antinausea medications as well. You can start a bland diet of boiled chicken or hamburger with rice. Feed 1 cup per 20lbs per day. Feed the bland diet due 3-5 days. I hope this helps and I wish Bennt a speedy recovery!
1Pet Parents found this answer helpful
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Published on March 7th, 2019
Thank you for submitting your question regarding Fabian. I recommend that he sees his veterinarian again today. Vomiting can be a side effect of vaccination, but there are other causes as well. Based on his exam findings, his veterinarian will make treatment recommendations. I hope this information helps!
1Pet Parents found this answer helpful
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Published on March 15th, 2018
Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Benny! Benny could be reacting to the treat, it could be causing an upset stomach. If he received any vaccinations or medications at the Vet he also could be having a reaction. Since Benny is still vomiting and is now non-productively retching and it has been going on now for over 24 hours he should be seen by your Vet. If his exam is normal they can provide medication to stop the vomiting and send you home with medications to continue. If he did receive vaccinations at the appointment they may give him steroids if they think it is a vaccine reaction. I would also recommend a bland diet for several days: boil chicken or hamburger with rice and feed 1 cup per 20 lbs per day for 3-5 days. If it was the PetSmart treat I would avoid that treat in the future. If you can't get to the Vet today, with hold water for 6 hours. If there is no vomiting at 6 hours offer small amounts of water. I would fast him (no food) for 12-24 hours then start the bland diet if he continues to not throw up. I hope this helps and I wish you and Benny the best!
1Pet Parents found this answer helpful
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