Medically reviewed by Drugs.com. Last updated on May 3, 2022.
Commonly used brand name(s)
In the U.S.
- Mephyton
Available Dosage Forms:
- Capsule
- Tablet
Therapeutic Class: Nutriceutical
Pharmacologic Class: Vitamin K (class)
Uses for phytonadione
Phytonadione is used to treat bleeding or blood clotting problems caused by vitamin K deficiency, certain medicines (eg, warfarin), or medical conditions (eg, obstructive jaundice, ulcerative colitis). Phytonadione is a man-made form of vitamin K, which occurs naturally in the body. It treats and prevents low levels of blood clotting factors needed to help your blood to thicken and stop bleeding normally.
Phytonadione is available only with your doctor’s prescription.
Before using phytonadione
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For phytonadione, the following should be considered:
Allergies
Tell your doctor if you have ever had any unusual or allergic reaction to phytonadione or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Pediatric
Appropriate studies have not been performed on the relationship of age to the effects of phytonadione in the pediatric population. Safety and efficacy have not been established.
Geriatric
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of phytonadione in the elderly. However, elderly patients are more likely to have age-related liver, kidney, or heart problems, which may require caution and an adjustment in the dose for patients receiving phytonadione.
Breastfeeding
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with medicines
Although certain medicines should not be used together...
