I can go first thing in the morning to see if TSC has it, was I just not giving enough niacin?
We've seen people using that exact brand with absolutely no progress with their B3 deficiency ducklings, a few drops of it may not have been cutting it for them either. Get the Durvet Cattle B and put 1/2ml over treats for each duckling, once a day till symptoms are gone. Let us know if you have any more questions!