Profender Spot On for cats prevents intestinal worms and lungworm in cats. Treat with Profender every 3 months. Expiry date: 02/2025 Brand: Profender Spot On Profender Spot On for Medium Cats has everything you expect and desire from a class act dewormer. It’s simple to use, easy to apply, and immediately effective. A single drop on the back of your cat’s neck can assuredly defend against all of the major gastrointestinal worms common to kitties, including: Hookworms Ascarids All varieties of tapeworms Cats weighing 2.5 to 5 kg (5.5 to 11 lbs.) will be free from all worm related symptoms, so you will once again be their hero and loving caregiver. They will, of course, act snobby and continue strutting around your house as if they own the place, but their thanks will be obvious through their greatly amplified purring.