Skip to main content

Anifrolumab Dosage

Medically reviewed by Last updated on Sep 15, 2021.

Applies to the following strengths: fnia 300 mg/2 mL

Usual Adult Dose for Systemic Lupus Erythematosus

300 mg IV over 30 minutes every 4 weeks


  • The efficacy of this drug has not been evaluated in patients with severe active lupus nephritis or severe active central nervous system lupus, therefore, the use in these situations is not recommended.
  • If a planned infusion is missed, administer as soon as possible but maintain a minimum interval of 14 days between infusions.

  • For the treatment of adult patients with moderate to severe systemic lupus erythematosus (SLE), who are receiving standard therapy

Renal Dose Adjustments

Data not available

Liver Dose Adjustments

Data not available

Dose Adjustments

Data not available



  • Patients who have had anaphylaxis to the active ingredient.

Safety and efficacy have not been established in patients younger than 18 years.

Consult WARNINGS section for additional precautions.


Data not available

Other Comments

Administration advice:

  • This drug must be diluted prior to intravenous administration.
  • Administer the infusion immediately after preparation.
  • If a planned infusion is missed, administer as soon as possible.
  • Maintain a minimum interval of 14 days between infusions.

Storage requirements:
  • Refrigerate vials at 36F to 46F (2C to 8C) in the original container until ready to use to protect from light.
  • The diluted solution might be stored at room temperature 15C to 25C (59F to 77F) for up to 4 hours or refrigerated 2C to 8C (36F to 46F) for up to 24 hours.
  • Do not freeze.
  • Do not shake.

Reconstitution/preparation techniques:
  • The manufacturer product information should be consulted.

IV compatibility:
  • Do not co-administer other medicines through the same infusion line.

Patient advice:
  • Inform patients that this drug may decrease their ability to fight infections, and serious infections, including fatal ones, occurred.
  • Advise patients to contact their healthcare provider if they develop any symptoms of an infection, including fever or flu-like symptoms; muscle aches; cough; shortness of breath; burning when they urinate or urinating more often than usual; diarrhea or stomach pain; shingles (a red skin rash that can cause pain and burning).
  • Instruct patients to immediately tell their healthcare provider or go to the emergency department if they experience symptoms of an allergic reaction (e.g., anaphylaxis) during or after the administration of this drug.
  • Inform patients that they should not receive live or live-attenuated vaccines while in treatment.
  • Advise patients to discuss with their healthcare provider before seeking immunizations on their own.
  • Advise female patients to inform their healthcare provider if they intend to become pregnant during therapy, suspect they are pregnant, or become pregnant while receiving this drug.
  • Inform women that they can find information about a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to this drug by calling 1-877-693-9268.

Frequently asked questions

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.