Anyone try Anatabloc?

Anyone try Anatabloc? Any good? (Just, fyi, I heard to be careful where you order it from as some vendors put you in an ongoing shipment program.)

http://www.amazon.com/Anatabloc-300-Lozenges-1-Bottle/dp/B005LVMRO0/ref=pd_sim_hpc_1

(Yes, I know, WG, ask my Dr.)

Thanks.