Reokay Injection is a supplement used to treat nutritional deficiencies caused by a deficiency of vitamin K. It is an essential nutrient that is necessary for blood clotting and bone metabolism. It helps to treat and prevent unusual bleeding by increasing the production of blood clotting factors in the body. Reokay Injection is given by a nurse or a doctor. You should not self-administer this medicine at home. Get the injection regularly to get maximum benefits from it. Do not stop getting the injection until you have completed the full course. It is generally safe medicine with little or no side effects. However, it may cause reactions at the site of injection in some people. Let your doctor know if you experience any other symptoms which you think is caused by the medicine. To make sure it is safe for you, let your doctor know about all the other medicines you are taking. Let your doctor also know if you are pregnant or breastfeeding.