Thanks so much for your reply. He's been getting less than one pump every day, and it definitely seems to be helping. He was actually playing with a cardboard tube last night, throwing it around like he was a young pig again. It was so much fun to watch.I just went to the manufacturer's website at marystails.com and this is what it says on the Serving Size section:
1 pump = 2 mg of Naturally Occurring CBD 100 mg CBD per Container
So by that math, I'm guessing a tube at once a day of 2mg, would be 50 days. I'm not gonna take that chance so I'll order a second one just to have on hand until I know for sure.