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Vitamin K
INFORMATION ABOUT VITAMIN K
Vitamin K Uses
Vitamin K is used in the treatment of nutritional deficiencies.
How Vitamin K works
Vitamin K helps the body make proteins that are essential for blood clotting and bone health. It supports the natural process that stops bleeding when you get injured and also helps maintain strong bones. In deficiency, restoring Vitamin K levels helps the body function properly and heal efficiently.
Common side effects of Vitamin K
Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common
Taste change, Cyanosis (bluish discoloration of the skin), Breathlessness, Flushing (sense of warmth in the face, ears, neck and trunk), Increased bilirubin in the blood, Decreased blood pressure, Itching, Skin erosion, Skin eruptions
CONTENT DETAILS
Written By
Dr. Anuj Saini
MMST, MBBS
Reviewed By
Dr. Rajeev Sharma
MBA, MBBS
Last updated
14 Jul 2025 | 09:19 AM (UTC)
We provide you with authentic, trustworthy and revelant information
Read our editorial policy
Medicine brands for Vitamin K
Neo K
₹27 to ₹27
Lincoln Pharmaceuticals Ltd
1 variant(s)
Kapilin
₹9 to ₹9
Glaxo SmithKline Pharmaceuticals Ltd
1 variant(s)
Expert advice for Vitamin K
Do not take anticoagulants ('blood thinners') such as warfarin (Coumadin) while you are taking phytonadione unless told to do so by your doctor, If you are taking orlistat (Xenical), take it 2 hours before or 2 hours after taking vitamin K.
  • If you need surgery or dental work, tell the surgeon or dentist ahead of time that you are using Vitamin K.
  • Vitamin K should be used with caution in patients with severe liver disease as the administration of high dosages has resulted in further depression of liver function.
  • Routine liver function tests should be performed if regular or prolonged therapy with vitamin K is necessary in patients with liver disease.
  • Too much vitamin K can be harmful if you are receiving dialysis treatments due to kidney disease.
Before using this medication, tell your doctor:
  • If you have a medical history of blood disorders.
  • If you have a medical history of gallbladder disease (e.g., obstructive jaundice, biliary fistula) .
  • If you have a medical history of liver or kidney disease.
  • If you have recently used or are currently taking an antibiotic.
  • If you have recently used or are currently taking a blood thinner such as anisindione, heparin, warfarin, Coumadin.
  • If you have recently used or are currently taking salicylates such as aspirin, Backache Relief Extra Strength, Novasal, Nuprin Backache Caplet, Doan's Pills Extra Strength, Pepto-Bismol, Tricosal, and others.
  • During pregnancy, this medication should be used only when clearly need.
  • Vitamin K alone, with certain other medicines, or with alcohol in some formulations may cause dizziness. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to vitamin K.
  • Vitamin K in some formulations contains benzyl alcohol, which has been reported to cause toxic and fatal reactions ("gasping syndrome") in newborn children. Discuss any questions or concerns with your doctor.
Frequently asked questions for Vitamin K
Vitamin K is a medicine used in the treatment of vitamin K deficiency. Vitamin K is an important nutrient that helps the blood to clot and prevent excessive bleeding in addition to other health benefits. The medicine provides an adequate level of vitamin K in the body to avoid any ailment related to its deficiency.
Vitamin K is important for maintaining healthy bones and healing of wounds. It helps in producing 4 out of 13 proteins essential for blood clotting. Vitamin K works along with Vitamin D to ensure that bones develop properly by enhancing the absorption of calcium and hence increasing bone mineral density. People who have adequate amounts of vitamin K are therefore less prone for hip fractures.
Vitamin K can be found in green leafy vegetables (such as spinach and cabbage), soyabean, milk, cheese, eggs, chicken, lamb, salmon, etc. Owing to the numerous benefits, it is advisable to include one or multiple food items rich in vitamin K in our everyday diet to prevent its deficiency.
Vitamin K is effective if used in the dose and duration advised by your doctor. Do not stop taking it even if you see improvement in your condition. If you stop using Vitamin K too early, the symptoms may return or worsen.
Vitamin K should be administered under the supervision of a trained healthcare professional or a doctor only and should not be self-administered. The dose will depend on the condition you are being treated for and will be decided by your doctor. Follow your doctor’s instructions carefully to get maximum benefit from Vitamin K.
Vitamin K is safe if used in the dose and duration advised by your doctor. Take it exactly as directed and do not skip any dose. Follow your doctor's instructions carefully and let your doctor know if any of the side effects bother you.
The most common signs and symptoms of vitamin K deficiency may include easy bruising, excessive and abnormal bleeding, hemorrhage, etc. The main reason for these symptoms is the deficiency of an important vitamin which is essential for blood clotting. This deficiency can also lead to abnormal and uncontrollable bleeding that can even endanger life.