My dog has been throwing up. He is also lethargic at times and will drink water but won't eat. Pet's info: Dog | Pit Bull Terrier | Male | unneutered | 2 years and 4 months old

Poor Diesel, it sounds like he isn't feeling well at all. This vomiting could be caused by eating something rotten, a GI illness, pancreatitis, or foreign body. I would withhold food for 12-24 hours. If that stops the vomiting, feed him a bland diet of boiled white meat chicken and white rice in small amounts several times a day for a couple of days. If he keeps that down, you can start slowly adding back in his normal diet. However, if Diesel keeps vomiting in the absence of food, vomits the bland diet, stops drinking water, and.or becomes very lethargic, you need to take him into your vet immediately.

Thank you for using Petco Pet Education Center, formerly Petcoach! I'm sorry that Summer is not feeling well! It sounds like she may have some gastrointestinal upset - this can be caused by parasites, inflammation of the intestinal tract due to eating something she shouldn't have, a foreign body, or pancreatitis. I recommend having her seen by a vet as soon as possible, especially if she continues to vomit or develops diarrhea. You can offer Summer small amounts of water and a bland diet (plain boiled white rice and chicken breast without seasoning or skin) in the meantime. I hope this helps and that all is well with Summer!

It sounds like Hydro is extremely ill. He could have a severe GI illness, may have eaten something rotten, or could have a foreign body among other things. It's a medical emergency when a dog can't even keep down water. You have no choice but to take him into a vet immediately.

Chicha is very sick if he can't even keep down water, but this can be caused by many illness, so I cannot say what is making him sick without seeing him in person. You need to take him into a vet immediately.

My dog is throwing up, lethargic, won't eat, but drinks water.

Updated On September 23rd, 2025

Pet's info: Dog | Pit Bull Terrier | Male | unneutered | 2 years and 4 months old

My dog has been throwing up. He is also lethargic at times and will drink water but won't eat.

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Answered By Dr. Leigh, DVM 58

Veterinarian

Published on July 1st, 2016

He should be examined by a vet to determine the cause, especially if he is lethargic. He could have an infection, parasite, pancreatitis, kidney disease, liver disease, endocrine disease, obstruction/foreign body. Your vet can run labwork and take xrays to help diagnose and prescibe medications to treat. He may need fluids to prevent dehydration and medications to control the vomiting.

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My dog is throwing up, lethargic, won't eat, but drinks water.

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