My dog is vomiting after flea medicine. Is this a side effect?

Question

Hi, my mothers 11 month old Boston terrier has been vomiting since 1 am today. She hasn't had anything new to eat. She did just get flea medication (front line plus) put on yesterday. Would that cause her to vomit? Any help is appreciated! Thank you in advance!! Pet's info: Dog | Boston Terrier | Female | unspayed | 10 months and 1 day old | 8 lbs

Catherine Stecyk · Accepted Answer

Hello and thank you for reaching out to Petco Pet Education Center, formerly Petcoach. With this much vomiting I would be worried about the possibility of Penelope eating something she shouldn't have, such as a toy or other foreign material, which could have caused a blockage or obstruction of her intestines. The topical flea and tick medication should not cause her to vomit. I recommend offering Penelope a small amount of boiled chicken and rice, and see if she tolerates this. If she vomits this up and/or cannot even keep water down, she should be seen by your veterinarian for x-rays. If she can eat a small amount of this bland diet, I recommend feeding this boiled chicken and rice for the next 2-3 days and slowly transitioning her back to her usual diet. I hope this is helpful!

My dog is vomiting after flea medicine. Is this a side effect?

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