I am on Dutas and have no reason to question its authenticity or effectiveness.
Its amazing how a muttering of disquiet (which is always nothing more than supposition) by a poster can snowball on these forums so before you know it all generics are fake blah blah blah :lol:
If people are to make claims can they at least back it up with evidence (i.e. take the generics that are alleged to be fake to a laboratory and have them tested); and reserve drawing judgment from conjecture.