Tyros™ 1 Infant Formula & Medical Food: Phenylalanine- And Tyrosine-Free, Sold As 1/Each Mead 893001 Tyros 1 Is An Iron-Fortified Infant Formula And Medical Food Powder That Is Free Of The Essential Amino Acids Phenylalanine And Tyrosine For Infants And Young Children With Documented Tyrosinemia Increased Levels Of B Vitamins, Compared To Routine Infant Formulas, For Cofactor Production Improved Taste; Sucrose (Table Sugar) Has Been Added To Neutralize The Taste Of Amino Acids Mixes Easily And Stays In Suspension Well Can Contains 454 Grams Of Phenylalanine- And Tyrosine-Free Iron-Fortified Powder Tyros, Powder Can 1Lb (6/Cs) 019401 Pediatric Oral Supplement Tyros™ 1 Unflavored 16 Oz. Can Powder Iron Tyrosinemia (Tyr) Tyros™ 1Sku: Mck-779010_Ea Mfgr Sku: 893001779010_EaShips In 14-21 Days