question: Hi doctor, I had a month old twin baby girls. They were born in the 34th week of pregnancy. One baby was 2.2 Kg, and the other was a little weaker weighing 2 Kg. Since there is not enough mother's milk after several attempts, I had to go for artificial milk powder. Initially, as suggested by the hospital pediatrician, they were given Dexolac Special Care, but after 20th day when their weight was around 2.4 Kg, they were given to Dexolac Premium 1. Out of the 2 babies, the weaker baby is responding well and quickly gaining weight (taking around 75 ml milk every 3 hours). But the baby which was born stronger is not drinking sufficient milk (45 ml in one feed, at an interval of around 3 hours), and is taking around an hour to take one feed. Also, she is having issues of gas and constipation. Because of constipation, she keeps crying. Now, this baby is not gaining weight and seem to be weaker. Please suggest what we can do in this case and shall we switch her milk to Lactogen or some other company?