What is it?
Vitamin K is a fat soluble vitamin used in the treatment of vitamin K deficiency caused by broad-spectrum antibiotics (used to treat infection), cephalosporins (used to treat infection), and prednisone (steroid). It is also supplemented in combination with other vitamins when malabsorption (decreased inability to absorb vitamins, mineral, and nutrients from food) is present. vitamin K is given, under the supervision of a doctor, to newborn babies to prevent hemorrhage (bleeding) and to patients on blood thinning medicine whose blood has become too thin. Vitamin K has also been used in the prevention and treatment of osteoporosis (brittle bones). Vitamin K1 (phylloquinone) is found naturally in leafy green vegetables (broccoli, brussel sprouts, cabbage, kale, lettuce, parsley, spinach, turnip greens, and water cress), cauliflower, and the vegetable oils from soybean, cottonseed, canola, and olive. Bacteria present in the human bowel produce vitamin K2.
Other names for vitamin K include: Vitamin K1 or Phylloquinone, Phytonadione, and Phytomenadione; Vitamin K2 or Menatetrenone; Vitamin K3 or Menadione.
Ask your doctor, nurse, or pharmacist if you need more information about this medicine or if any information in this leaflet concerns you.
Tell your doctor if you
Talk with your caregiver about how much vitamin K you should take. The amount depends on the strength of the medicine and the reason you are taking Vitamin K. If you are using this medicine without instructions from your caregiver, follow the directions on the medicine bottle. Do not take more medicine or take it more often than the directions tell you to.
To store this medicine:
Keep all medicine locked up and away from children. Store medicine away from heat and direct light. Do not store your medicine in the bathroom, near the kitchen sink, or in other damp places. Heat or moisture may cause the medicine to break down and not work the way it should work. Throw away medicine that is out of date or that you do not need. Never share your medicine with others.
Drug and Food Interactions:
Do not take vitamin K without talking to your doctor first if you are taking:
Call your doctor right away if you have any of these side effects:
Other Side Effects:
You may have the following side effects, but this medicine may also cause other side effects. Tell your doctor if you have side effects that you think are caused by this medicine.
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Last Updated: 4/4/2014
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