Do you mean 12.5 mcg...instead of 125mcg? 125 mcg would be super huge dose. Whereas 12.5 mcg would be a starting dose (and you said he just started), with room to go up.

It just takes the edge of my joint pain, but it significantly helps my nerve pain.

If you husband isn't getting the relief he was looking for, then maybe he needs to move up to the next size patch (25 mcg).