Unfortunately, this deal is no longer valid
Posted 23rd Feb
Pets at Home have their cat wormers on offer - buy one get one half price, works out at £11.25 each for 2 applications (£22.50 spend for the 4). Dronspot does 3 types of worms, is easy to apply on the back of the cats neck and is the best in my opinion. Cheapest I can find it online.