My dog ate too many Heartgard pills. Is it an overdose? What now?

Question

My 105lbs dog ate 4 chewable ivermectin/pyrantel heartgard medicine for 51 to100lbs dogs what should I do?

Debi Matlack · Accepted Answer

Toxicity can occur if a dog is given an excessive dose of the medication (10 to 20 times the recommended dose). Your dog has consumed roughly four times the recommended dose. If your dog has ivermectin toxicity, you may see any of the following symptoms: Lethargy Depression Drooling Vomiting Dilated pupils Loss of appetite Disorientation Tremors/Seizures Blindness Trouble standing Slow heartbeat Difficulty breathing Coma Ivermectin toxicity cannot be reversed. If the drug was given within the past 4 – 6 hours, your veterinarian may induce vomiting and/or give your dog activated charcoal to help minimize the amount of ivermectin that is absorbed. If it has been less than 2 hours since your pet ingested the foreign material, you can induce vomiting by giving an oral dose of hydrogen peroxide, about 1 cc per pound. One tablespoon is about 5 cc. A turkey baster will work if you don't have a syringe. Longer than two hours and it will have already moved into the intestines.

My dog ate too many Heartgard pills. Is it an overdose? What now?

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