VIVONEX Pediatric: VIVONEX PEDIATRIC formula is a nutritionally complete elemental (100% free amino acids) diet designed specifically for children ages 1-10. Can be used as a tube feeding or consumed orally and flavored with VIVONEX Flavor Packets. VIVONEX PEDIATRIC formula is a Medical Food -- consumers should consult with their physician on the use of this Product. 36x48.7 oz..