Is there any evidence for that?
Yes. Cats can go into seizures from popular flea medicines.
https://www.petcarerx.com/article/tick-and-flea-medicine-poisoning-in-cats/4602
Is there any evidence for that?
Yes. Cats can go into seizures from popular flea medicines.
https://www.petcarerx.com/article/tick-and-flea-medicine-poisoning-in-cats/4602