As the syrup calmax contain both
calcium with
vitamin d, this should be supplemented till the baby reaches 1 year.
Also, correct age of the baby should be known as the baby is born preterm
Next Steps
If baby is not interested in calmax syrup
U can try
Vitamin d3 drops & calcimax p separately
Vitd3 drops 1ml = 800IU should be given daily as the baby is preterm
Health Tips
Take consultation to get better explanation and dose