Just came from vet visit (boosters) and the vet washed my brain out re worming My cats are indoor only, I have never ever seen a flea or a worm but I still worm them regularly. Fleas - Advantage (6 weekly spring - autumn). For worms it is Drontal each 3 months, on pregnant queen I do worm a week before due date (no matter when she was wormed before) with Panacur. Kittens with Panacur liquid (tough it was a mess and I probably will try paste) @ 6, 9 and 12 weeks. Advantage for kittens twice (if I remember correctly). Once kittens are away, queen is back on Drontal. Now - obviously Drontal and Panacur is not treating for heartworms so was "kindly" advised to use Milbemax on the queen and Panacur on kittens. I did some research before I started to stick on my plan, heartworm treatment didn't "came up" as essential for indoor cats. Any advice?