Beaphar Anti-parasite Spot On for Rabbits, Guinea Pigs, Ferrets & Rats is a convenient, ready-to-use spot on treatment that kills external parasites such as mites, lice and internal parasites such as roundworms.An approved veterinary preparation containing ivermectin in ready-to-use pipettes. Simply squeeze the contents of the pipette onto the back of your pet to control external parasites such as mites, lice, fleas and ticks, plus internal parasites such as roundworms. Particularly recommended for mange mites and ear mitesThis size of treatment is suitable for use on animals over 300g, such as rats, guinea pigs, rabbits, and ferrets.Dosage GuidelinesRats over 300 g - 1 pipetteGuinea-pigs 300g-750g - 1 pipetteGuinea-pigs over 750g - 2 pipettesRabbits (per 750g body weight) - 1 pipetteFerrets 300g-750g - 1 pipetteFerrets from 750g - 1500g - 2 pipettesFerrets over 1500g - 3 pipettes