Not really. I can't think of anything you can or should "give" a dog to reduce the "potency" of his urine. What you can do is consider yourself lucky that he seems to have chosen one spot and returns to that spot every time. Otherwise, your entire lawn might present itself with burned spots. What I might do would be to consider landscaping changes that would screen that particular spot from the rest of the yard, if possible, and take advantage of it.

For many, it's a tough job to teach a dog to "go" always in the same spot.

Vitamin C! 1000mg 2x/day We took some stuff that we bought at PetsMart in to the vet to make sure it was vet approved, and they gave us the Vitamin C advice as a cheaper alternative. We've done it for a year now (2 labs - male and female), and we are very satisfied. Hint: We can break it in 1/2 and put it in the food for one, but we have to use peanut butter for the other one.

I've also heard of people feeding there dogs yeast when they feed them. Just plain old yeast from a grocery store. Don't know the results though. Good luck.

I have been told that if you can water the spot afterwards to dilute the urine, this works. I know you can't be with your dog 24/7 to watch and follow with a watering can, but it has seemed to help in my yard, we have 2 labs, female and male

Their is no way that I can think of that will reduce the potency of his urine. I would assume even with treatment, it will still kill the grass because it is still urine.