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Intravenous Acetaminophen Dosage

Your healthcare provider will take into consideration several factors when determining your dosage of intravenous acetaminophen. Some of these factors include your age, your weight, and other medical conditions you may have. Your healthcare provider will also need to know if you are taking any other medicines that may include acetaminophen. This medication is administered intravenously (by an IV drip) every four to six hours.

An Introduction to Your Dosage of Intravenous Acetaminophen

The dose of intravenous acetaminophen (Ofirmev™) your healthcare provider recommends will vary, depending on factors such as:
  • Your age
  • Your weight
  • Other medications you are taking
  • Other medical conditions you may have.

Intravenous Acetaminophen Dosing for Pain or Fever

For adults and adolescents (age 13 years old and older) who weigh at least 50 kg (110 pounds), the standard recommended intravenous acetaminophen dosage is either 1000 mg every six hours or 650 mg every four hours. No matter what dosage is used, the absolute maximum dose for acetaminophen (from all sources, including oral medications) is 4000 mg per day.
For children under 13 years of age (and for adults and adolescents who weigh less than 110 pounds), the dose will be calculated based on weight.
The standard recommended intravenous (IV) dosage is the same as the oral dosage of acetaminophen. This makes it easy, fast, and convenient to calculate the maximum amount that can be given within 24 hours.
If you have kidney or liver disease, you may need a lower and/or less frequent dose of this medication.

General Information on Receiving Intravenous Acetaminophen

Some considerations for people receiving intravenous acetaminophen include the following:
  • This medication is given by IV every four to six hours.
  • Intravenous acetaminophen may be given along with narcotic pain relievers.
  • Each dose should be given by IV drip over a period of about 15 minutes.
  • For the medication to work properly, it must be given as prescribed.
  • If you are unsure about anything related to your dosage of intravenous acetaminophen, please talk with your healthcare provider or pharmacist.
Warning: 10 Hidden Sources of Lactose

IV Acetaminophen Information

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