Skip to main content
Saphnelo Coupon - Saphnelo 2ml of 300mg/2ml vial

Saphnelo

anifrolumab-fnia
Used for Lupus

Saphnelo (anifrolumab or anifrolumab-fnia) is an FDA approved injection used along with other medications to treat adults with moderate-to-severe systemic lupus erythematosus (SLE), an autoimmune condition that causes your immune system to mistakenly attack your own body. It's given either as an infusion into a vein once a month by a healthcare professional or as an injection under the skin once a week at home. Common side effects include upper respiratory tract infections, bronchitis, and cough.

Reviewed by:Last reviewed on August 6, 2026
basics-icon

What is Saphnelo (anifrolumab)?

What is Saphnelo (anifrolumab) used for?

How Saphnelo (anifrolumab) works

Saphnelo (anifrolumab) is a type I interferon (IFN) receptor antagonist, meaning it blocks the activity of proteins called type I IFNs. If you have lupus, these proteins can make your immune system too active.

By blocking type I IFNs, Saphnelo (anifrolumab) helps calm your immune system and reduce inflammation.

When does Saphnelo (anifrolumab) start working?Time passed since treatment started:
HOURS
DAYS
WEEKS
Initial effect
MONTHS
Full effect

Drug facts

Common BrandsSaphnelo
Drug ClassType I interferon receptor antagonist
Controlled Substance ClassificationNot a controlled medication
Generic StatusNo lower-cost generic available
AvailabilityPrescription only
side-effects-icon

Side effects of Saphnelo (anifrolumab)

The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.

Common Side Effects

*Note: These side effects were reported in clinical studies with the IV infusion.

Less Common Side Effects

  • Other respiratory infections
  • Allergic reactions

Saphnelo (anifrolumab) serious side effects

Contact your healthcare provider immediately if you experience any of the following.

  • Severe infection: confusion, fever, shortness of breath, muscle aches, weakness, cough, sweating, chills, stomach pain, diarrhea, burning sensation when you urinate, urinating more often, warm or painful skin or sores on your body
  • Serious allergic reaction: swelling in the face or tongue, breathing problems, dizziness, lightheadedness,

Source: DailyMed

The following Saphnelo (anifrolumab) side effects have also been reported

Side effects that you should report to your care team as soon as possible:

Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):

prices-container

Get your GoodRx coupon

Avg retail price
N/A
GoodRx discount
$5939.05
See prices
pros-and-cons-icon

Pros and cons of Saphnelo (anifrolumab)

Pros

  • Helps to improve moderate-to-severe SLE when used with other lupus medications
  • Available as either an IV infusion or a once-weekly self injection
  • IV treatment is given once a month

Cons

  • The IV infusion needs to be given by a healthcare professional
  • Risk of serious infections
  • Only approved for adults, not for children
pharmacist-tips-icon

Pharmacist tips for Saphnelo (anifrolumab)

pharmacist
  • Saphnelo (anifrolumab) can raise your risk of serious infections. Get medical help right away if you have fever, cough, trouble breathing, or feel very weak. You might have to stop taking the medication until the infection gets better.
  • Tell your healthcare team you're taking Saphnelo (anifrolumab) before getting any vaccines. Some live vaccines might not be safe while you're using this medication.
  • Saphnelo (anifrolumab) can cause serious allergic reactions, including anaphylaxis. Get emergency medical help right away if you have trouble breathing, swelling of your face or throat, dizziness, or a severe rash during or after treatment.
  • Pregnancy: Tell your prescriber if you're pregnant or planning to become pregnant before taking Saphnelo (anifrolumab). There isn't enough information to know if it's safe during pregnancy. If you take this medication while pregnant, consider joining the pregnancy registry by calling 1-877-693-9268.
  • Breastfeeding: It's not known whether Saphnelo (anifrolumab) is safe during breastfeeding. Although studies suggest that only small amounts pass into breast milk, it's generally recommended to wait at least 2 weeks after giving birth before restarting treatment. Talk with your prescriber about the risks and benefits of breastfeeding during treatment.

IV infusion:

  • Keep your appointments to receive Saphnelo (anifrolumab) on time. If you miss an appointment, contact your care team as soon as possible to reschedule.
  • Saphnelo (anifrolumab) can cause infusion-related reactions, such as headache, tiredness, dizziness, nausea, and vomiting. Tell your care team if these symptoms bother you or become severe.

Injection under the skin:

  • Your prescriber will teach you how to inject under the skin at home. Read the instructions for your prefilled syringe or autoinjector, and ask your care team if you have questions.
  • Store the medication in the refrigerator in its original carton. You can keep it at room temperature for up to 7 days, but don't put it back in the refrigerator.
  • Before injecting, let the medication sit at room temperature for about 60 minutes before injecting it. Don't warm it any other way.
  • Inject it into the fat under the skin of your lower stomach (at least 2 inches from your belly button) or the front of your thigh. If a caregiver gives the injection, they can also use the back of your upper arm. Use a different injection site each time.
  • Don't inject it into a muscle or vein. Also, don't inject through clothing, or into skin that is red, bruised, tender, hard, scarred, tattooed, or damaged.
  • Prefilled syringe: Hold the syringe at a 45° angle and insert the needle into a pinched area of skin using a quick, dart-like motion.
  • Autoinjector: Hold the autoinjector at a 90° angle with the green needle guard flat against your skin. Press down firmly and hold for 15 seconds until the viewing window fills with green.
  • Throw away each used syringe or autoinjector in a sharps container right away. Never reuse it or throw it in the regular trash.
warnings-icon

Risks and warnings for Saphnelo (anifrolumab)

Saphnelo (anifrolumab) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.

Serious infections

  • Risk factors: Active infection | Long-term or recurrent infection

Saphnelo (anifrolumab) can affect your immune system and make it harder for your body to fight infections. This can raise your risk of serious infections, including COVID-19, shingles, and other infections that can sometimes be life-threatening. Your risk is higher if you have an active infection, get infections often, or have a long-term infection.

Contact your care team right away if you develop signs of an infection, such as a fever, cough, trouble breathing, painful rash or blisters, or if you're not getting better with treatment. You might have to stop Saphnelo (anifrolumab) until the infection goes away.

Serious allergic reactions

Serious allergic reactions to Saphnelo (anifrolumab) can happen, including life-threatening reactions like anaphylaxis. Get emergency medical help right away if you have trouble breathing, swelling of your face or throat, hives, dizziness, or feel like you might faint during or after treatment. If you have a serious allergic reaction, your care team will stop the medication and treat the reaction.

Potential risk for cancer

Saphnelo (anifrolumab) might raise your risk of certain cancers because it affects your immune system. It's not known whether this medication directly increases cancer risk. Tell your prescriber if you have a history of cancer or develop cancer while taking Saphnelo (anifrolumab) so they can decide whether you should continue treatment.

dosage-icon

Saphnelo (anifrolumab) dosage

penPen
DosageQuantityPrice as low asPrice per unit
0.8ml of 120mg/0.8ml4 pens$5,939.05$1,484.76
syringeSyringe
DosageQuantityPrice as low asPrice per unit
0.8ml of 120mg/0.8ml4 syringes$5,939.05$1,484.76
cost-icon

How much does Saphnelo (anifrolumab) cost?

To access savings, use a GoodRx coupon and pay just a fraction of the retail price.
alternatives-icon

What are alternatives to Saphnelo (anifrolumab)?

There are a number of medications that your doctor can prescribe in place of Saphnelo (anifrolumab). Compare a few possible alternatives below.
Saphnelo (anifrolumab)
Used for:
$5,939.05Lowest GoodRx priceView prices
Used for:
$2,406.36Lowest GoodRx priceView prices
latest-news-icon

News about Saphnelo (anifrolumab)

images-icon

Saphnelo (anifrolumab) images

yellow - Saphnelo 300mg/2mL Solution for Injection
This medicine is Yellow Vial.yellow - Saphnelo 300mg/2mL Solution for Injection

References

Best studies we found

American Cancer Society. (2024). Infusion or immune reactions.

Anifrolumab Pregnancy Registry. (n.d.). About the anifrolumab pregnancy registry.

AstraZeneca Pharmaceuticals. (2026). SAPHNELO (anifrolumab-fnia) injection, for intravenous, or subcutaneous use [package insert]. DailyMed.

GoodRx Health has strict sourcing policies and relies on primary sources such as medical organizations, governmental agencies, academic institutions, and peer-reviewed scientific journals. Learn more about how we ensure our content is accurate, thorough, and unbiased by reading our editorial guidelines.