A friend of mine wants to know how to work out the dosage for a bunny using Revolution(called Stronghold in the U.K.); she only has the cat stuff, so should she work out the dosage per kg and only give him what he needs?

Provided that the medication and strength is the same, Revolution is dosed to rabbits the same as cats. Typically the small cat/kitten tube is what is needed for a rabbit and the smallest dose possible is always best. Hopefully someone from the UK will be on soon to assure that they are the same product.

http://www.medirabbit.com/Safe_medication/Anti_parasitics/safe_antiparasitic. htm The generic name for Revolution is selamection it is dosed 6 mg/kg