I don't know about the formula because I breastfeed however the Losec took 4 weeks to work with my DS - how long has your DS been on it? I did try a dairy free diet but it didn't make a difference, the peadeatrician things he may be lactose intorelant but I am filtering the dairy enough for him.
The domperidom helps with the vomiting (he was vomiting up the Losec before without it).
He has been on solids for about 10 days now - just baby rice and pear puree so far.
Last night I had a really good night - think solids are starting to pay off. Asleep at 7.15 he then woke at 9.30 and I fed him I then keep him upright in my arms for 20 mins or so before putting him back in his cot at 10.15. He next woke at 11.35 when I just changed his nappy and cuddled him and put him back to his cot. Then he woke at 12.55 when I fed him again and he was back in his cot at 1.30. Then he woke at 3.10 - cuddled and back to cot. Finally he woke at 4.35 for the day. (It's impossible to get him back to sleep after 4.)
First nap of the day is then at 7 for about an hour and a half (and boy do I need that one!).
Lisa