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Originally Posted by Rhetts_mama  My question would be has he been tested for heartworms? Giving the medication to a dog with the disease can produce a toxic reaction. Heartworm Prevention If the larval worms die too quickly, a shock-like circulatory reaction can occur so for this reason the American Heartworm Society recommends that the first dose of ivermectin be given under veterinary supervision. This allows the dog to be observed for several hours following the oral dose in case of trouble. |
Thank you I wasn't sure, that's what my vet gave me for the girls and they were clear so I thought no harm. I will call my vet and ask.