Medically reviewed by Drugs.com. Last updated on Apr 17, 2022.
- Very bad and sometimes deadly effects have happened during and after injection into a vein or a muscle. These effects looked like allergic reactions with very bad heart or breathing problems. Some people have had these effects after getting phytonadione injection for the first time. This medicine must only be given into a vein or a muscle when it cannot be given other ways and the benefits are more than the risks.
Uses of Phytonadione Injection:
- It is used to replace low vitamin K.
- It is used to undo the effects of certain blood thinners like warfarin.
- It is used to treat or prevent bleeding.
- It is often given to newborn babies.
What do I need to tell my doctor BEFORE I take Phytonadione Injection?
- If you have an allergy to phytonadione (vitamin k) or any other part of phytonadione injection.
- If you are allergic to phytonadione injection; any part of phytonadione injection; or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had.
This medicine may interact with other drugs or health problems.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take phytonadione injection with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Phytonadione Injection?
For all uses of phytonadione injection:
- Tell all of your health care providers that you take phytonadione injection. This includes your doctors, nurses, pharmacists, and dentists.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- Skin reactions have happened with phytonadione injection. Sometimes, this has happened up to 1 year after phytonadione injection was given. If you have a rash or other skin reaction, talk with your doctor.
- This medicine may contain aluminum. There is a chance of aluminum toxicity if you are on phytonadione injection for a long time. The risk is greater if you have kidney problems. The risk is also higher in premature infants. Talk with the doctor.
- Some products have benzyl alcohol. Do not give a product that has benzyl alcohol in it to a newborn or infant. Talk with the doctor to see if this product has benzyl alcohol in it.
- Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding. You will need to talk about the benefits and risks to you and the baby.
For undoing the effects of a blood thinner:
- People are treated with drugs to thin the blood when they have health problems that raise the chance of blood clots. This medicine is used to undo the effects of a blood thinner. The chance of blood clots may be raised after using phytonadione injection. Follow what the doctor has told you about preventing blood clots after use of phytonadione injection.
How is this medicine (Phytonadione Injection) best taken?
Use phytonadione injection as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- It is given as a shot into a muscle, vein, or into the fatty part of the skin.
What do I do if I miss a dose?
- Call your doctor to find out what to do.
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Feeling tired or weak.
- Chest pain or pressure.
- Fast or abnormal heartbeat.
- Dizziness or passing out.
- Shortness of breath.
- Sweating a lot.
- Change in color of skin to a bluish color like on the lips, nail beds, fingers, or toes.
What are some other side effects of Phytonadione Injection?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Pain, redness, or swelling where the shot was given.
- Change in taste.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-332-1088. You may also report side effects at https://www.fda.gov/medwatch.
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Phytonadione Injection?
- If you need to store phytonadione injection at home, talk with your doctor, nurse, or pharmacist about how to store it.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about phytonadione injection, please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
More about phytonadione
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- During pregnancy or Breastfeeding
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