menadione men·a·di·one (měn'ə-dī'ōn')
A synthetic vitamin K derivative occurring as a yellow crystalline powder and used as a vitamin K supplement.
vitamin K1 n.
A yellow viscous oil found in leafy green vegetables or made synthetically, used by the body to form prothrombin.
vitamin K2 n.
Any of various yellowish crystalline compounds isolated from putrefied fish meal or from various intestinal bacteria and used to stop hemorrhaging. Also called menaquinone.
The major dietary form of vitamin K that is synthesized in plants and found primarily in green, leafy vegetables such as alfalfa and in vegetable oils. It can be made synthetically and is given orally to treat prothrombin deficiency that results from heparin and other anticoagulant drugs. Also called phylloquinone. Chemical formula: C31H46O2.