Advantage flea treatment - dosage

[CurlyCatz]

susanne did you read what i replied on chat ? 

basically what millys mum said but altho you dont want different dosages on the go i would pick up a pack of correct dosage for next treatement time..i forget if your cats go out ?? if they dont then i might be inclined to stick with current type and see if you get away with it, if they go out i'd get stronger stuff.

[Susanne (urbantigers)]

Yes, I suppose he is just a bit over the weight limit so it will probably be alright.  As I don't do them that often a  4 pack will last a while so I'd rather use it for both of them than have 2 packs on the go.

[Millys Mum]

I'd go with using it and then when you buy more get one more appropiate for his weight.
I would think it would still work ok, its not like hes double the limit!

[Susanne (urbantigers)]

While I was at the vets today I picked up some Advantage to treat Mosi.  As it's a pack of 4 I could do with using it for Jaffa too.  It's the smaller dosage though for cats under 4kg (Mosi is 3.4kg) and Jaffa weighs just under 5kg.  If I use it on Jaffa will it be effective or do I really need to get the one for larger cats?  He doesn't actually have any fleas, I just use it periodically as a precaution.