Please help I am at a loss

[Patrick Windsor II]

Hello, I have a 6 month male Golden Doddle that has had a chronic problem with diarrhea. When he was about 3 months he had bought with Giardia and our vet gave him some pills and a powder I put on his food. Ever since then there is maybe one day a week where his stool is semi firm, but then we cycle back to liquid stool for the remaining 5-6 days. I have brought him back to the vet at least two times a month since then with a sample of his stool and they say they do not see anything, but they go ahead and give me the powder and pills again. I have tried pumpkin (which the vet says does not really help as there is not that much fiber in it to make a difference) and a probiotic and nothing seems to work. What is odd is that it is very cyclical, specifically on Tuesday's and Wednesdays its worse. Last night he woke me up at 3:30 am then again at 4:00 am then again at 4:30. We go outside and he has gas with the liquid stool. It will continue like this for a few days and by friday it will be back to a semi hard stool (similar in substance to  soft serve ice cream).

He has been eating the Blue Buffalo Wilderness Puppy Chicken Recipe Grain-Free Dry Dog Food and I mix in a spoon of the Blue Buffalo Wilderness canned food. Out of desperation, yesterday I switched his food to Castor & Pollux Organix Chicken, Brown Rice & Flaxseed Puppy Dry Dog Food supplemented with a spoon full of their canned dog food. His first meal with that was dinner last night and at 3:30 we started with the diarrhea again. He did eat it again this morning, but I did NOT supplement it with the canned food. I know I should have eased into the new food, but I am so desperate to help him I just did an immediate switch.

Anyone who can provide any insight? It would be much appreciated

[Karen, Jasper and Jackdoodle]

Also, by any chance did your pup come from the Pacific Northwest? There is a strain of antibiotic resistant giardia that we have seen in a number of dogs who came from breeders in that part of the country. 

[Patrick Windsor II]

No he did not, he came from the central region

[Karen & Maple]

Question-regarding ordering Proviable online. It needs to be kept at or below 77 degrees. Do you know of a supplier that keeps it at that temp? What about shipping temps? I was thinking of I ordering in the winter (as I did last year) when there will be a lower chance for over heating. I can get from my vet as I have this summer, but it's cheaper online.

[F, Calla & Luca]

doesn't it somehow get shipped to the vet or drug rep or someone anyhow?

[Karen & Maple]

I know. I thought of that too. Maybe they get from a more reliable source? Or maybe not? I couldn't find any reference to temps from online stores.

[Karen, Jasper and Jackdoodle]

Jack's probiotic must be kept refrigerated and the manufacturer ships it in a styrofoam cold pack. 

[Patrick Windsor II]

I ordered it from Amazon. I did put it in the fridge after I gave him his first dose