Originally Posted by
SamsonsMom
UGH! I switched the boys over to Nexgard from Frontline due to all the weekly swimming. I started Nexgard at the end of May. The heart preventative is Sentinel Spectrum. After 3 doses, Samson began having focal seizures. I took him in for blood work and an evaluation and nothing came up. The only thing changed in his world was the addition of Nexgard. Immediately stopped them after reading the potential of neurological impact. Ugh, I should have researched first. He has had no signs of focal seizures since. Asher had no reaction but I stopped his too. Run and run fast from Nexgard in my opinion.
After two months without protection I decided it was time to try something new (Asher in the vet weekly and then rehab twice a weeek). I purchased the 8 month flea collar from Seresto. Within 12 hrs of wearing, Asher had a horrible reaction. Blisters on the back of his neck and the base of his tail. He crawled in bed with me and the back of his neck touched my face and it was soaked. I thought maybe he peed in the crate. When I turned on the light, it was pink fluid. I was horrified. Samson had no reaction to this collar. I left his on. I went back to Frontline for Asher.
Good luck!