The only problem is that it is not labled to
kill all of the
worms that the monthly's are.However it is so much less expensive if you have a
giant dog.My vet also recamends every 6 month intestinal
worm checks so if your dog gets
worms you are sure to know.I am currently using pro-heart for my 2 older dogs it is so convenient.I must admit I am not the best about giving the monthly on time.