T.T.
We went through several types before we found what works for our child. We tried Enfamil Soy and only used it for one day before we switched to Lactose Free.
We didnt wait a week...she was having diarea and this was something we werent going to accept.
After switching her to Lactose Free Formula she had no prob. what so ever.
At one year and we switched to milk - it turns out she is Lactose intol. She could not drink reg. milk
She can only drink Lactaid Milk Brand for some reason any other brand she will spit up projectile vomit.
Even one sip of reg milk and she spits up.
I would say try Lactose free milk.