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Hi, I'm Dr. Jill and I'd be happy to help. How much does your dog weigh and how many suppositories did he ingest?
Most likely yes. Phenylephrine is the drug in the suppositories that can cause issues, and when ingested only small amounts of it are usually absorbed. Generally it causes vomiting, trembling, panting, etc., and it can cause changes in heart rate or blood pressure. While he did ingest a large dose, hopefully the vomiting helped get most of it out and limit his exposure.
If he's acting otherwise normal at this point, I expect he'll likely be just fine. Are you still seeing any signs of concern such as excessive panting, trembling, or changes in activity (lethargy or hyperactivity)?
Great. The good news is the effects of this drug are usually short lived. If he does have high blood pressure from the medication, it should resolve within a few hours. But if he had ongoing issues, you would most likely see changes in his behavior. Some dogs will get a bit of diarrhea from the effect of the medication, but otherwise I think you can rest easy.
Let me know if you have any other questions regarding your pup's preparation h ingestions.
No problem, glad I could help!
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