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Dr. Bruce
Dr. Bruce, Veterinarian
Category: Dog Veterinary
Satisfied Customers: 17967
Experience:  15 years of experience as a small animal veterinarian
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My six month puppy ate half of my mother's ranitidine pill

Customer Question

My six month puppy ate half of my mother's ranitidine pill (150mg). Is this serious? Should I take her to the vet? I know my last dog was on a the same pills for his stomach problems but I wasn't sure about the milligrams. She weighs approximately 22lbs.
Submitted: 9 months ago.
Category: Dog Veterinary
Expert:  Dr. Bruce replied 9 months ago.

Hi. Welcome to Just Answer. My name is***** I want to make sure I understand this situation completely. So this girl ate about 1/2 of a single 150 mg ranitidine pill? How long ago did this happen? Does she have any other health issues or is on any other medications?

Customer: replied 9 months ago.
We were cleaning the bedroom and there was a pill on the floor. She grabbed it and chewed it up. It seemed like maybe half at most was swallowed. She's completely healthy otherwise, no medications.
Expert:  Dr. Bruce replied 9 months ago.

That is good. This shouldn't be a bad situation. This drug is an H2 blocker and these are tolerated pretty well by canines. If 1/2 of a 150 was eaten, that gives a dose consumed of about 75 mg. A 22 pound dog is 10 kg's. So the mg/kg dose is 7.5 mg /kg. When being used for treatment, it is dosed around 1-2 mg / kg q 12 hours. A dose of 7.5 mg / kg isn't that much above this and really shouldn't be expected to cause any problems. There really isn't any need for specific treatment at this time.