I walked right into my vet and they gave me revolution for my kittens without a heartworm test. Obviously,they shouldn't have without doing the test first. I didn't have to get a prescription and they did not keep it in the fridge and I don't remember it saying to put it in the fridge. If anything,I think it might have said to store at a temperature that would have been around room temp. so maybe its a good idea to NOT put it in the fridge.don't know.
I would not treat my kittens with flea treatment if they don't have fleas. I gave them revolution when I got them,because someone dumped them and I did it to get rid of any worms,earmites,etc that they may/may not have had.
Maybe I'm just one of the lucky ones....but on our farm we don't have fleas. I'm not saying we don't have a single flea,but I have not seen any sign of them for YEARS!. Yeah! It may be because we have cattle and other farm animals....maybe they hop on them instead,even though they get "treated" or else...the "bugs" that live on the farm due to large farm animals aren't compatiable with fleas...either eat em or overpower em. Whatever,just glad!