Phytonadione (vitamin K) is used to prevent bleeding in people with blood clotting problems or too little vitamin K in the body. Phytonadione is in a class of medications called vitamins. It works by providing vitamin K that is needed for blood to clot normally in the body.
Side Effects Of Phytonadione
Phytonadione may cause side effects. If you experience the following symptom, call your doctor immediately:
- unusual bruising or bleeding
Warnings & Precautions
Before taking phytonadione:
- tell your doctor and pharmacist if you are allergic to phytonadione, any other medications, or any of the ingredients in phytonadione tablets. Ask your pharmacist for a list of the ingredients.
- Do not take anticoagulants (‘blood thinners’) such as warfarin (Coumadin) while you are taking phytonadione unless told to do so by your doctor.
- tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: antibiotics; salicylate pain relievers such as aspirin or aspirin-containing products, choline magnesium trisalicylate, choline salicylate (Arthropan), diflunisal (Dolobid), magnesium salicylate (Doan’s, others), and salsalate (Argesic, Disalcid, Salgesic). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
- if you are taking orlistat (Xenical), take it 2 hours before or 2 hours after phytonadione.
- tell your doctor if you have or have ever had liver disease.
- tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking phytonadione, call your doctor.
Dosage Of Phytonadione
Phytonadione comes as a tablet to take by mouth. It should be taken as directed by your doctor. Your doctor may sometimes prescribe another medication (bile salts) to take with phytonadione. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Do not stop taking phytonadione without talking to your doctor. Take phytonadione exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your response to phytonadione.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
All information has been provided courtesy of MedLinePlus from the National Library of Medicine and from the FDA.