Tell your doctor if you have ever had any unusual or allergic reaction to medicines in this group or any other medicines. For these supplements, the following should be considered: Allergies If you are taking a dietary supplement without a prescription, carefully read and follow any precautions on the label. Vitamin k (class) is available only with your doctor's prescription. Vitamin K is routinely given to newborn infants to prevent bleeding problems. Your doctor may treat this by prescribing vitamin K for you. Lack of vitamin K is rare but may lead to problems with blood clotting and increased bleeding. Your doctor or health care professional may recommend changes in your diet to help these medicines work better. If you are taking anticoagulant medicine (blood thinners), the amount of vitamin K in your diet may affect how well these medicines work. Little vitamin K is lost from foods with ordinary cooking. If you eat a balanced diet containing these foods, you should be getting all the vitamin K you need. Vitamin K is found in various foods including green leafy vegetables, meat, and dairy products. Vitamin K is necessary for normal clotting of the blood. They are needed in only small amounts and usually are available in the foods that you eat.

Vitamins are compounds that you must have for growth and health.

Vit k is the antidote for