(Armitage Pet Care) Flea & Tick Drops For Dogs (Small) For small dogs and puppies from 2 weeks under 15kg. Easy to use, effective treatment.. This pack contains 3 x 1 monthly treatment. Providing protection from fleas and ticks for up to 12 weeks. Armitage Pet Care Flea and Tick drops for dogs can only be effective as part of a programme to eliminate fleas and their larvae from pets and their surroundings. However, as fleas can also live in your carpets and in your pets bed, you should treat...