I gave our cat (6months give or take she’s a rescue) Hartz. Followed the directions. She began to have muscle spasms and seize. I had never seen this happen before, so my mom gave her a bath with Dawn, then we drove her to the animal hospital. After a full afternoon of treatments she continued to seize and didn’t make it through the night.
After extensive research I am appalled this product is still on the market.