According to the card, the composition is cholecalciferol and olive oil. 1 drop (0.03 ml) contains 11.0 µg (440 IU) of vitamin D3, and the 10 ml bottle holds 330 drops. The card gives no comparison with tablets and capsules, nor storage conditions or shelf life.
General information (not a manufacturer's instruction): check the storage conditions and shelf life on the packaging; do not exceed the amount stated on the card – 1 drop a day.