BOXED WARNING WARNING — INTRAVENOUS AND INTRAMUSCULAR USE Severe reactions, including fatalities, have occurred during and immediately after INTRAVENOUS injection of phytonadione, even when precautions have been taken to dilute the phytonadione and to avoid rapid infusion. Severe reactions, including fatalities, have also been reported following INTRAMUSCULAR administration. Typically these severe reactions have resembled hypersensitivity or anaphylaxis, including shock and cardiac and/or respiratory arrest. Some patients have exhibited these severe reactions on receiving phytonadione for the first time. Therefore the INTRAVENOUS and INTRAMUSCULAR routes should be restricted to those situations where the subcutaneous route is not feasible and the serious risk involved is considered justified.
Adult Dosing
General dosing
Whenever possible, phytonadione injectable emulsion, should be given by the subcutaneous route. (See Box Warning .) When intravenous administration is considered unavoidable, the drug should be injected very slowly, not exceeding 1 mg per minute. Protect from light at all times. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Directions for Dilution Phytonadione injectable emulsion may be diluted with 0.9% Sodium Chloride Injection, 5% Dextrose Injection, or 5% Dextrose and Sodium Chloride Injection. Benzyl alcohol as a preservative has been associated with toxicity in newborns. Therefore, all of the above diluents should be preservative-free (see WARNINGS ). Other diluents should not be used . When dilutions are indicated, administration should be startedimmediately after mixture with the diluent, and unused portions of the dilution should be discarded, as well as unused contents of the ampule. Prophylaxis of Hemorrhagic Diseas e of the Newborn The American Academy of Pediatrics recommends that phytonadione be given to the newborn.
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