So it does appear that for all intents and purposes the WAC is priced on a per mg basis.
SNY was WAC less 14%, correct? So the $15M that HPG will save is $15M less than whatever that discounted number was.
You can see that a 120mg dose, for instance, costs roughly twice what a 60mg syringe does and 4-times what a 30mg one does. Throw in the fact that it is given twice a day and not once a day and you see how large this news is.