Hmmmm....my friend's lo is on alimentum and although she doesn't have a prescription for it, her insurance company reimburses her. I told her how lucky she was...our insurance company wouldn't hear of it! We were spending about $400 per month!!!! Whew...glad that's behind us for MANY reasons!!!
Also, wanted to add this too, like mydreamcametrue said.....our Doc told us that it wasn't neccesary to do the switch gradually, since we were going from milk-based to milk-based. I thought that was carzy, honestly. So when we tried the switch, we began adding 1/2 ounce of the Good Start to her bottles, waiting a week, then adding another 1/2 ounce. By the time we got to 50/50 Alimentum and Good Start, she was refluxing like crazy, so I went back to the Alimentum exclusively. When we tried again at 13 months (the 1st try was at 8 months) we did the same thing, except with cow's milk, but still made the transition in 1/2 ounce incrememnts and the whole process took about a month. I feel strongly that switching all at once could be such a shock to their little system.....after all, you're not even supposed to switch your pet's food all at once!!!!! JMHO...
Anyway....best of luck......