Vitamin K is usually given as a single injection in your baby’s leg muscle shortly after birth. If you prefer that your baby does not get an injection, they can have liquid vitamin K drops into their mouth. It is important to note that oral vitamin K drops are not absorbed as well by the body than injected vitamin K, so 3 doses of oral vitamin K are needed. The first dose is given at birth, the second at 3 to 5 days of age and the third when they are 4 weeks old. Vitamin K injections are preferred over the oral drops for all babies. Some babies aren’t able to have oral vitamin K, such as if the mother was taking certain medications while pregnant, or if your baby is premature, unwell, taking antibiotics or has diarrhoea.