How much amprollium are you giving? If usuing the 9.6% liquid you can use 2 tsp per gallon. Usually with amprollium you don’t want to give extra thiamine which the Critical Care has in the long list of ingredients. You may want to check with your vet about that. I would use the amprollium as your only source of water, and it can also be put into a small amount of feed. Let us know how he gets along, and glad that you could see the vet.