Phytomenadione is typically administered as an injection, and the usual dosage for adults varies depending on the condition being treated. It is commonly used to prevent bleeding in newborn babies and to treat bleeding disorders caused by liver disease or the use of blood-thinning medications such as warfarin.
As with any medication, phytomenadione may cause side effects in some people. Common side effects may include pain, redness, or swelling at the injection site. Rare but serious side effects may include allergic reactions, which can be life-threatening.
It is important to follow the instructions of your healthcare provider when taking phytomenadione, and to report any side effects or concerns you may have. If you experience any severe side effects or signs of an allergic reaction, seek medical attention immediately.