How is acetaminophen injection given?
Acetaminophen injection is injected into a vein through an IV. You may be shown how to use an IV at home. Do not self-inject this medicine if you do not fully understand how to give the injection and properly dispose of used needles, IV tubing, and other items used to inject the medicine.
Do not use more of this medication than is recommended. An overdose of acetaminophen can damage your liver or cause death.
Acetaminophen injection is usually given once every 4 to 6 hours. Follow your doctor's dosing instructions very carefully.
Each single use vial (bottle) of this medicine is for one use only. Throw away after one use, even if there is still some medicine left in it after injecting your dose.
Store at room temperature away from heat and moisture. Do not refrigerate or freeze.
You must use the medication within 6 hours after opening a vial.
What happens if I miss a dose?
Since acetaminophen is used as needed, you may not be on a dosing schedule. If you are using the medication regularly, use the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not use extra medicine to make up the missed dose.
Do not use acetaminophen injection more often than every 4 hours.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of acetaminophen can be fatal.
The first signs of an acetaminophen overdose include loss of appetite, nausea, vomiting, stomach pain, sweating, and confusion or weakness. Later symptoms may include pain in your upper stomach, dark urine, and yellowing of your skin or the whites of your eyes.
Overdose symptoms may also include hunger with irritability, fast heart rate, tremors, feeling jittery, trouble concentrating, easy bruising, unusual bleeding, or purple or red pinpoint spots under your skin.