Vitamin K (Systemic)

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

Less common - With menadiol or high doses of phytonadione in newborns

Decreased appetite; decreased movement or activity; difficulty in breathing; enlarged liver; general body swelling; irritability; muscle stiffness; paleness; yellow eyes or skin

Rare - With injection only

Difficulty in swallowing; fast or irregular breathing; lightheadedness or fainting; shortness of breath; skin rash, hives and/or itching; swelling of eyelids, face, or lips; tightness in chest; troubled breathing and/or wheezing

Rare

Blue color or flushing or redness of skin; dizziness; fast and/or weak heartbeat; increased sweating; low blood pressure (temporary)

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

Less common

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.