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Dr. Andy
Dr. Andy, Medical Director
Category: Dog Veterinary
Satisfied Customers: 30034
Experience:  UC Davis graduate, emphasis in dermatology, internal medicine, pain management
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My dog has been vomiting and a pure liquid diarrhea

Customer Question

My dog has been vomiting and a pure liquid diarrhea for the last hour
Submitted: 1 year ago.
Category: Dog Veterinary
Expert:  Dr. Andy replied 1 year ago.
Welcome! My name is***** am a UC Davis graduate, and currently, a Medical Director of a veterinary hospital.
I am sorry to hear about this concern or Buddy. At this age, and with a acute onset of both vomiting and "liquid" diarrhea, this is worth an ER vet visit. Even if I make a suggestion or two below, definitely, it does not replace immediate examination. A veterinarian really needs to get Buddy started on much better supportive care and testing.
Vomiting and diarrhea causes can include:
- Dietary indiscretion (eating something you do not know about)
- Stomach or intestinal foreign body
- Something that was given to them (new food, new treat, human food)
- Intestinal parasitism (not just the worms, but the microscopic bugs like Giardia and Coccidia). They can cause vomiting also, not just diarrhea
- Toxin exposure would be less likely, unless you have reason to suspect exposure to a chemical.
- Less commonly, endocrine diseases like Addison’s
- Generally, in older pets, I am also concerned about organ disease (liver, kidneys) and cancer.
To help settle the stomach you can use of the following, but not as a replacement for veterinary examination include
1.Pepcid A.C. (famotidine) comes in 10mg, 20mg, or 40mg tablets.
You can give it every 12 hours. You can give 0.5mg per pound of body weight. So, a 20 pound dog would get 10mg.
2.Prilosec (omeprazole). It comes in 10mg or 20mg tablets.
You can give in every 24 hours. You give 0.5mg per pound of body weight. So, a 20 pound dog would get 10mg
3.Zantac (Ranitidne). It comes in 75mg, 150mg, or 300mg sizes.
You can give it every 8 to 12 hours. You give 0.25 to 1mg per pound of body weight. So, a 20 pound dog would get roughly 1/3 tablet of the 75mg. Even with bigger pets, it is easiest to get the smallest size tablet. Even a 75 pound dog would only need one 75mg tablet.
4.Pepto-Bismol or Kaopectate
You can give it every 8 hours. The average dose is 1ml per pound of body weight, and that is the TOTAL dose for the day.So, if a pet weighs 30 pounds, they would get a total of 30ml a day or 10ml every 8 hours. This is dosing for regular strength Pepto-Bismol. If you use maximum strength liquid, give half as much.
I would not try to give any food for at least the next 12 hours, or as directed by a vet.
Very sorry that Buddy is not feeling well. Good Luck!
Dr. Andy
Customer: replied 1 year ago.
Thank you. On the way to ER
Expert:  Dr. Andy replied 1 year ago.
Sounds like a plan!
Good Luck. Well worth it to get some good medication for the stomach and intestinal tract.
Possible testing that may be suggested would include some abdominal x-rays and a basic blood test.
Dr. Andy