Bob Martin Clear Wormer Tablets for Cats and Kittens are an effective, one-dose treatment against the most common types of worms, roundworm and tapeworm. It has been specially developed to make worming easy, the tablets require only one dose to keep your cat healthy and worm free. It is clinically proven. IMPORTANT: Use correctly to safeguard the health of you and your pet. Read the Product Information on pack or enclosed leaflet carefully before use.