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What is Anifrolumab-fnia Injection used for?

Updated Sep 7, 20261 min readAnswer
On this pageShort answer Starting anifrolumab: what to know Common questions Related questions Sources
Short answer

**Anifrolumab-fnia injection (Saphnelo) treats moderate to severe systemic lupus erythematosus in adults receiving standard lupus treatment.**

It blocks signals from type I interferons, proteins involved in immune activity, to help control your lupus. You receive it as an infusion into a vein every 4 weeks or an injection under your skin once weekly. It is not recommended if you have severe active lupus affecting your kidneys or central nervous system. Your rheumatologist should assess whether it fits your treatment plan, and you should review your medicines and vaccinations before starting.

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Starting anifrolumab: what to know

1**Review your medicines:**Give your rheumatologist a complete medication list before starting treatment.
2**Confirm your schedule:**Ask your care team which injection form you will receive and how to use it.
3**Check vaccinations:**Review your vaccines before treatment and avoid live vaccines while taking anifrolumab.
4**Report infection symptoms:**Contact your clinician promptly if you develop fever, cough, or painful skin blisters.
5**Discuss pregnancy:**Tell your clinician if you are pregnant, planning pregnancy, or breastfeeding.
6**Get emergency help:**Call 911 if you develop trouble breathing or swelling of your tongue or throat.

Common questions

What is Anifrolumab-fnia Injection used for?

Anifrolumab-fnia (Saphnelo) treats moderate to severe systemic lupus erythematosus in adults already taking standard lupus medicines. It helps control your disease by blocking immune signals called type I interferons, but it does not cure lupus. You receive a 30-minute IV infusion every 4 weeks or an injection under your skin once weekly. It is not recommended for severe active lupus nephritis or central nervous system lupus. Your rheumatologist decides whether it suits you. Report infection symptoms promptly and avoid live vaccines during treatment.

About this page. Written and maintained by the Pymander Health team. Last updated September 7, 2026.

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