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My 11lb dog ate a Reese's peanut butter cup. Should I be worried?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 1 year and 11 months old | 11 lbs

My 11 lb dog might have eaten 1 reeses peanut butter cup. Should I be worried? Her belly is broken out, but it has rashed like this before. I caught her licking a piece of the brown reeses cup wrapper.

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1 Answer

Most Helpful Answer

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Answered By Ana M, DVM

Veterinarian

Published on October 27th, 2019

Thank you for submitting your question regarding Luna. One Reeces cup likely does not contain enough chocolate to cause toxicity based on her size. It can, however, cause gastrointestinal upset or even a more serious condition known as pancreatitis. If she develops vomiting or diarrhea, then she should see her veterinarian. If she is allergic to any of the ingredients, inflamed skin could result. That being said, her skin changes could be the result of something else especially if it has happened before. You can bathe her with a moisturizing shampoo and conditioner such as an oatmeal or fatty acid based formula to soothe the skin. If this does not help, then she should see her veterinarian. I hope this information helps!

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