#AskTheExpert sir, my son is 2 yr 2 months old still he s 8.8 kg only..birth weight is 2.75 . one of our pediatrician suggested to give appetite increase syrup which is Neogadine .. after using this I see slight changes with him.. how long can i continue this sir and what is the difference between Elixir Neogadine and Neogadine.. can i proceed elixir neogadine to 2.2 month baby.. suggest me thanks.