I've never seen it, either.
Interesting- no strength listed, just 'Athletic Series'
120 tabs $38.76
Dunno what the mcg's are.
iherb has the 60 size bottle
http://www.iherb.com/ProductDetails....&pid=2454&at=0
and it says..."from 10 mg dibencozide 8.6 mg " (yes mg.) - %DV-143,000%, for $18.86
I use Jarrow 1000,mcg, methylcobalamin - sub lingual.
Much less expensive.
Maybe Mrs D will have an answer