What is Fasenra?
Fasenra, also known by its generic name benralizumab, is a prescription medicine. It belongs to the monoclonal antibody drug class. It helps reduce asthma flare-ups in patients with severe eosinophilic asthma.
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Fasenra Mechanism of Action
Fasenra works by targeting and reducing eosinophils, a type of white blood cell. High eosinophils cause airway inflammation, leading to asthma attacks. By lowering them, Fasenra improves breathing and reduces hospital visits.
What is Fasenra Used For?
Doctors prescribe Fasenra for:
- Severe eosinophilic asthma in adults and children (12+ years).
- Reducing asthma symptoms like wheezing and breathlessness.
- Decreasing the need for oral steroids.
It is not a rescue medicine for sudden asthma attacks.
Fasenra Injection and Fasenra Pen
Fasenra comes as a pre-filled syringe or pen for injection. A healthcare provider usually gives the first doses. Later, patients may use the Fasenra pen for self-injection under guidance.
Fasenra Dosage
The standard Fasenra dose is:
- One injection (30 mg) every 4 weeks for the first 3 doses.
- Then, one injection every 8 weeks.
Your doctor will decide the right schedule based on your health.
Side Effects of Fasenra
Like any medicine, Fasenra may cause side effects. Common ones include:
- Headache
- Sore throat
- Fever
- Injection site reactions
Serious but rare side effects:
- Allergic reactions like rash or swelling
- Breathing problems
Seek medical help if you notice severe reactions.
Before Taking Fasenra
Tell your doctor if you:
- Are pregnant or breastfeeding
- Have parasitic infections
- Take other asthma medicines
- Have a history of allergic reactions
Fasenra Interactions
Fasenra may interact with:
- Other biologic asthma medicines
- Immune-suppressing drugs
- Steroid medications
Always share your medicine list with your doctor.
Does Fasenra Have Steroid in It?
No. Fasenra is not a steroid. It is a monoclonal antibody that targets eosinophils. However, it may help patients reduce steroid use over time.
Are Fasenra and Dupixent the Same?
No. Both treat asthma but work differently. Dupixent targets IL-4 and IL-13 pathways, while Fasenra works on eosinophils. Your doctor will decide which suits your condition better.
Fasenra Cost
The cost of Fasenra is high. In the U.S., it may range from $5,000 to $6,000 per injection without insurance. However, patient assistance programs may reduce expenses. Always check with your healthcare provider and insurance company.
FAQs About Fasenra
Q1: How long does Fasenra take to work?
It may start improving symptoms within weeks, but full benefits take months.
Q2: Can Fasenra cure asthma?
No. Fasenra controls symptoms but does not cure asthma.
Q3: How long do you stay on Fasenra?
It depends on your doctor’s advice and how well your body responds.
Q4: Can children use Fasenra?
Yes, but only those above 12 years and under medical supervision.
