How long does it take for nutramigen to work?

[cryingbabymess]

My 8 week old DD has just been prescribed nutramigen, for those of you that have LO's on it, how long did it take for you to notice a difference? She's been on aptamil prior to this.
Thanks

Give it 10-14days to see if there is any improvement. The doctor/Dietitian will be able to suggest alternatives if not. Some people notice an improvement straight away though

Thank you for replying! I've noticed a difference within 24 hours! She slept overnight! Her poo is a lot better and she's smiling again.