Q. 5 month old Yorkie poo has round worms. Has been on advantage multi monthly. Does she need something else?
A. Advantage multiple should get rid of round worms if applied correctly and monthly. If it was a heavy infestation of worms it may take a couple of doses or it may be worth adding an additional wormer in. You will need to speak to your vet as to what can be used in conjunction with it. We use slightly different wormers in the UK. Was the worms dead? As long as it was that is good it shows the wormer is working. Normally you wouldn't expect to see dead worms after using a good wormer but again if it was a heavy infestation it is not unusual.