please suggest me if I can change Nestle to Lactogen FM..  my baby is 1month 25 days..

yes u Dr also prescribed when I breast milk ane me 2 din lagte hai

Yes dear,  you can.  Once you change brand there might be few problems which your baby may face like gas in the tummy,  hard stool,  less feed etc.  So plz don't panic from these. 
Stay with breast feeding and also offer top up feed till the first six months of the life.