Sorry, posting on AIBU for traffic and in the hope that a vet/someone more knowledgeable can advise. Our cat was due its flea treatment today. We use Frontline Plus with 10% friponil. I applied it this morning. My DH has just come home from work and also applied it assuming that I hadn't until he realised the mistake. This is the first time we've ever done this in 13 years and now we're really worried we've poisoned our beloved cat. He's 13 yo so an elderly cat otherwise in good health. I immediately washed his entire neck area to get rid of it as much as possible but I assume the stuff is absorbed pretty immediately. I locked the cat flap to keep an eye on the cat - he seemed okay so far - but now my DH has accidentally opened the door and the cat has run out (he likes to be out at night) and won't come back in (he's already eaten). I'm now super worried in case he collapses somewhere. Where we are, it's impossible to find our cat once he's roaming. On top of it all, we're going away early doors tomorrow so only have a friend coming over to feed daily but the cat doesn't usually appear when friend comes. So we've no way to check up on him.
Is anyone able to advise? I'm really terrified that a double dosage of Frontline means my cat will OD somewhere :(((((((