Dual vial adapter assemblages similar to US Patent No. 6 558 365 to Zinger et al. and US Patent No. 8 752 598 to Denenburg et al. and including a quick release drug vial adapter with an upright finger grip extension pair for manually urging inward towards one another for releasing same from a drug vial. The quick release drug vial adapter ensures correct usage of a dual vial adapter assemblage by preventing immediate removal of a drug vial adapter from a drug vial after forming a liquid drug therein thereby assisting a healthcare provider to follow an administration protocol requiring an initial aspiration of some liquid drug contents for immediate administration purposes to a patient prior to subsequent infusion of the liquid drug remainder.
