Usually all formulas should be mixed 1 scoop to 2 oz of water. Water should be added first and then powder.  
Milk based, for most babies
Examples: Enfamil Complete, Similac Advance
Sometimes used after a diarrheal illness, but these are not needed in the grand majority of patients
Examples: Similac Sensitive, Enfamily Gentlease
For infants with IgE mediated cow's milk allergy
For infants with galactosemia
Examples: Enfamil Isomil, Gerber Good Start Soy, Similac Isomil
Most are lactose free
For infants with food protein induced proctocolitis or IgE mediated cow's milk allergy
Examples: Enfamil Nutramigen, Similac Alimentär
Free from amino acids, indicated for patient's with severe cow's milk protein allergy
Lactose free
Examples: Electra, Neocate
Baby feeding and nutrition
Neonatal resuscitation
Newborn resuscitation
Tongue diagnoses
Apgar score
Pediatric antibiotics
Ventilation modes
Getting started