A composition match, not medical advice.
Ducal D3 Drop contains Vitamin D3 (Cholecalciferol) 400IU, as a drop. It is made by Dr. Morepen Ltd.
No, it is sold over the counter. Ask a doctor or pharmacist if you are unsure whether it suits you.
Yes. Cholecalciferol (Vitamin D3) Drops 400 IU per ml is a Jan Aushadhi medicine with the same salt, the same strength and the same form. On JanAushadhiOnline it costs ₹18.75 for 15 mls (₹1.3 / ml), against ₹4.3 / ml for Ducal D3 Drop at its printed MRP — 71% less per ml. Ask your doctor before changing a brand.