Can I Switch My Baby To Generic Formula?

As we all know, money is tight these days, and I wonder if it would hurt my 6 1/2 month old baby boy to switch him to like wal mart brand baby formula? Also – My son was born on March 25th, 2009. Technically he is 29 weeks old, but the doctors are going by the 25th of each month for his age… How does this work and which one is correct??? Thank you!

Is Generic Baby Formula As Good As Name Brand?

I have baby #2 on the way. I used Similac for baby #1 but I now see that Babies R US has it’s own brand of formula and it’s much cheaper. Should i stick with Similac or is the off-brand ok to use?