
My girls are wormed with Drontal Plus just before mating, then not again until the pups are wormed at 3,5,7 weeks, the pups are then wormed with Drontal Puppy suspension, one dose one day every 2 weeks.
Unfortunately we were unlucky enough to have had a bad experience with Panacur, so tend to avoid it, but this isn't the same with all as many people use it without problems.
Never had a pup with worms (yet)
Life is too short to worry about muddy pawprints.....