Hi Doctor, My Newborn Has Completed 2 Months. Should I

Hi doctor, my newborn has completed 2 months. Should I be giving malcavit and Visenyrl drops daily? I tried giving her in the first month and she did it take well to the Meds. I have observed the day o give ger Meds- she doesn't feed enough, sleeps a lot and even vomits.
Is it absu dire necessity to give the supplements this small or I can wait till she grows a bit older?