Bravecto Spot-On Solution For Large Cats 13.8-27.5lbs (6.25-12.5kg) - No Rx requiredBravecto Topical Solution for Large Cats For Cats weighing > 6. 25 12. 5 kg ( 13. 8 27. 5 lbs) Bravecto Topical for Cats comes in a small pipette container, which is easy to use and contains a single dose of medication designed for long term protection. Once the topical has been applied, your cat is protected for 12 weeks! In short, all you need to do is dab on the contents for just one of these pipettes, and your furry friend is set for four months!