Gerry, this morning, 4:30 am I was awakened by my cat having a seizure. He continued to seize until I got him to the vet at opening @ 8:30. It was horrible. Bio-spot was also the product we used. Rascal is now hanging on by a thread, with an iv catheter at the vet. I contacted Farnam today, and they told me they would reimburse the vet fees. Call 800-234-2269. I was surprised by their helpfulness. It was apparent they have dealt with this on numerous ocassions. They actual have an after hours emergency line just for vets to call into to find out what to do. incredible that they still sell the product.