Dupixent (dupilumab) is a prescription biologic medication used to treat several chronic inflammatory conditions. It works by lowering the activity of certain immune cells and cuts down the release of substances in your body that cause allergic reactions, irritation, or flare-ups.
While Dupixent has shown strong efficacy across multiple conditions, correct dosing is essential for safe and effective use. This article provides detailed Dupixent dosing instructions for both adults and children, aligned with FDA-approved prescribing guidelines.
General Dupixent (dupilumab) Dosing Instructions
Dupixent (dupilumab) is administered as a subcutaneous injection (under the skin). It comes in two delivery formats: a prefilled pen (200 mg and 300 mg) and a prefilled syringe (200 mg and 300 mg).
Adults and children aged 2 years and older may use either the pen or the syringe. However, for children as young as 6 months, only the prefilled syringe is recommended, as the auto-injector may not be suitable due to their smaller size, thinner skin, and limited control over the injection site.
Additional instructions include:
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- If you are 12 years and older, you can either give yourself the Dupixent injection or have a caregiver do it.
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- If the patient is a child (age 12 to under 18), even though they are allowed to self-inject, it should be done under the supervision of an adult to ensure it’s done safely and correctly.
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- For children younger than 12 years old (from 6 months to under 12 years), only a caregiver should give the injection.
It’s also recommended to complete all age-appropriate vaccinations, following local guidelines, before starting Dupixent.
Dupixent does not significantly interact with most other medications. This means it can typically be used alongside drugs like blood pressure medications, acid reducers, blood thinners, or sedatives. However, it’s still important to inform your doctor about all the medications you’re taking.
Pediatric Patient Dosing
Each Dupixent indication has specific dosing protocols based on age, weight, and disease severity. In children and teens, dosing is determined as follows:
For Atopic Dermatitis
Dupixent is approved to treat moderate-to-severe atopic dermatitis (eczema) in both adults and children aged 6 months and older.
It’s intended for patients whose eczema isn’t well-managed with topical prescription treatments, such as medicated creams or ointments, or for those who can’t use these treatments for any reason (e.g., due to side effects, allergies, or other risks).
Dupixent can be used by itself or along with topical corticosteroids. In some cases, topical calcineurin inhibitors (like tacrolimus or pimecrolimus) may also be added. However, these medications should only be used on specific sensitive areas, such as:
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- Face
- Neck
- Skin folds or intertriginous areas, like underarms or under the breasts
- Genital area
This is because calcineurin inhibitors are typically reserved for areas where corticosteroids might cause skin thinning or irritation with long-term use.
In children and teens, the dosage to treat atopic dermatitis is weight- and age-based:
| Age Group | Weight | Initial Dose (Loading) | Maintenance Dose | Frequency |
|---|---|---|---|---|
| 6 months to 5 years | 5 kg to less than 15 kg | No loading dose | 200 mg | Every 4 weeks |
| 15 kg to less than 30 kg | No loading dose | 300 mg | Every 4 weeks | |
| 6 years of age and older | 15 kg to less than 30 kg | 600 mg (two 300 mg injections) | 300 mg | Every 4 weeks |
| 30 kg to less than 60 kg | 400 mg (two 200 mg injections) | 200 mg | Every 2 weeks | |
| 60 kg or more | 600 mg (two 300 mg injections) | 300 mg | Every 2 weeks |
For Asthma
Dupixent is approved as an add-on maintenance treatment for adults and children aged 6 years and older who have moderate-to-severe asthma and meet one of these two conditions:
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- Eosinophilic phenotype (a type of asthma linked to high eosinophil counts, a kind of white blood cell involved in inflammation)
- Oral corticosteroid-dependent asthma (they need ongoing steroid pills to control their asthma)
Note that Dupixent is not used alone. It’s added to a regular asthma treatment plan when standard medications aren’t enough. In addition, Dupixent is not for quick relief. It should not be used to treat:
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- Acute asthma attacks (bronchospasms)
- Status asthmaticus (a severe, life-threatening asthma episode that doesn’t respond to standard treatment)
- In emergencies, patients should use a rescue inhaler (like albuterol) or other fast-acting medication instead.
The pediatric dosage for asthma is based on age and weight, following FDA-approved guidelines:
| Age Group | Weight | Initial Dose (Loading) | Maintenance Dose | Frequency |
|---|---|---|---|---|
| 6 to 11 years | 15 kg to less than 30 kg | No loading dose | 300 mg | Every 4 weeks |
| 30 kg or more | No loading dose | 200 mg | Every 2 weeks | |
| 12 years of age and older | Not weight-based. Depending on the severity of the asthma, the prescribing doctor will choose between the 200 mg or 300 mg. | 400 mg (two 200 mg) or 600 mg (two 300 mg) | 200 mg or 300 mg | Every 2 weeks |
For Pediatrics with Both Asthma and Atopic Dermatitis
If a child has both asthma and moderate-to-severe atopic dermatitis (eczema):
| Age Group | Weight | Initial Dose (Loading) | Maintenance Dose | Frequency |
|---|---|---|---|---|
| 6 to 11 years with both asthma and eczema | 15 kg to less than 30 kg | 600 mg (two 300 mg injections) | 300 mg | Every 4 weeks |
| 30 kg to less than 60 kg | 400 mg (two 200 mg injections) | 200 mg | Every 2 weeks | |
| 60 kg or more | 600 mg (two 300 mg injections) | 300 mg | Every 2 weeks | |
| 12 years of age and older with both oral corticosteroid-dependent asthma and eczema | – | 600 mg (two 300 mg injections) | 300 mg | Every 2 weeks |
For Chronic Rhinosinusitis with Nasal Polyps
Dupixent is approved to treat chronic rhinosinusitis with nasal polyps (CRSwNP) in adults and children aged 12 years and older who have inadequately controlled symptoms, even with standard treatments like nasal sprays or surgery.
It’s used as an add-on maintenance treatment, meaning it’s given alongside other therapies when those aren’t working well enough.
Recommended dose for patients 12 years and older with CRSwNP is 300 mg every 2 weeks.
So, if you’re 12 or older and struggling with nasal polyps despite usual medications, Dupixent can be added to your treatment plan to help reduce symptoms like nasal blockage, facial pressure, and reduced sense of smell.
For Eosinophilic Esophagitis
Dupixent is approved for use in both adults and children who have a condition called eosinophilic esophagitis (EoE), a chronic allergic inflammatory disease of the esophagus (the tube that carries food from the mouth to the stomach).
EoE is caused by a buildup of eosinophils (a type of white blood cell) in the esophagus, which leads to inflammation and makes it hard or painful to swallow. It’s often related to food allergies or other allergic conditions.
The FDA has approved Dupixent to treat patients who are 1 year of age or older and weigh at least 15 kg (about 33 pounds).
Here’s how the dosing works for children aged 1 year and older with EoE:
| Weight | Recommended Dosage | Frequency |
|---|---|---|
| 15 kg to less than 30 kg | 200 mg | Every 2 weeks |
| 30 kg to less than 40 kg | 300 mg | Every 2 weeks |
| 40 kg or more | 300 mg | Every week |
For Chronic Spontaneous Urticaria
Dupixent is approved to treat chronic spontaneous urticaria (CSU), a condition marked by frequent, unexplained hives and/or swelling lasting 6 weeks or more. However, it is only approved for patients 12 years and older who still have symptoms despite taking H1 antihistamines (like cetirizine, loratadine, or fexofenadine).
In addition, Dupixent should not be used to treat other types of hives or urticaria, like:
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- Physical urticaria (triggered by cold, pressure, heat, etc.)
- Acute urticaria (short-term hives often linked to infections or allergens)
Here is the Dupixent’s dosing schedule for CSU in patients aged 12 to 17 years:
| Body Weight | Initial (Loading) Dose | Maintenance Dose | Frequency |
|---|---|---|---|
| 30 kg to less than 60 kg | 400 mg (two 200 mg injections) | 200 mg | Every 2 weeks |
| 60 kg or more | 600 mg (two 300 mg injections) | 300 mg | Every 2 weeks |
Adult Patient Dosing
Dosing is generally simpler in adults compared to pediatric patients. Unlike in pediatrics, adult dosing doesn’t vary with age or weight brackets. It is also approved to treat more conditions in adults, including.
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- Prurigo Nodularis – a chronic skin condition that causes extremely itchy, hard lumps (nodules) on the skin. It’s typically resistant to regular treatment and linked to inflammation and an overactive immune response.
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- Chronic Obstructive Pulmonary Disease (COPD) – Dupixent is now approved as a maintenance treatment for adults with COPD, but only for eosinophilic COPD. It is added on to existing COPD treatments when those alone aren’t working well. Note that Dupixent does not work as a rescue medication and should not be used during sudden breathing attacks.
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- Bullous Pemphigoid – a rare and serious autoimmune skin disease in adults that causes large, fluid-filled blisters on the skin.
Below is a comprehensive summary of Dupixent’s dosing schedule for adults across all indications.
| Condition | Initial (Loading) Dose | Maintenance Dose | Frequency | Notes |
|---|---|---|---|---|
| Atopic Dermatitis | 600 mg (two 300 mg injections) | 300 mg | Every 2 weeks | Can be used with or without topical corticosteroids |
| Asthma (Eosinophilic or Steroid-Dependent) | 400 mg (two 200 mg) or 600 mg (two 300 mg) | 200 mg or 300 mg | Every 2 weeks | Choice depends on severity and eosinophil levels |
| Chronic Rhinosinusitis with Nasal Polyps | No loading dose | 300 mg | Every 2 weeks | As an add-on maintenance treatment |
| Eosinophilic Esophagitis | No loading dose | 300 mg | Every 2 weeks (if less than 40 kg) Every week (if 40 kg or more) | |
| Prurigo Nodularis | 600 mg (two 300 mg injections) | 300 mg | Every 2 weeks | |
| Chronic Spontaneous Urticaria | 600 mg (two 300 mg injections) | 300 mg | Every 2 weeks | Only for CSU not controlled with H1 antihistamines |
| Chronic Obstructive Pulmonary Disease | No loading dose | 300 mg | Every 2 weeks | As an add-on maintenance treatment |
| Bullous Pemphigoid | 600 mg (two 300 mg injections) | 300 mg | Every 2 weeks | Should be used together with a tapering dose of oral corticosteroids. After the taper, maintain treatment with Dupixent monotherapy. |
Senior Patient Dosing (65+ years)
Dupixent has been tested in older adults, but not always in large numbers. For most conditions like asthma, COPD, and nasal polyps, older adults responded to Dupixent about the same as younger patients, both in how well it worked and in terms of side effects.
However, in other conditions like atopic dermatitis, EoE, and prurigo nodularis, there weren’t enough seniors in the trials to know whether they respond differently.
One exception was seen in bullous pemphigoid, 10% of older adults reported blurred vision, while none of the younger adults did. This may suggest a potential age-related side effect, but more research is needed to confirm.
What to Do If You Miss a Dose
If a scheduled Dupixent shot is missed, follow these dosing adjustments based on the prescribed frequency.
1. If the dose is weekly (once every week):
Take it as soon as possible. Then, start a new weekly schedule from the date you actually took the missed dose. For example, if your usual dose is every Monday and you miss it but take it on Thursday, your new dose day becomes Thursday each week.
2. If the dose is every 2 weeks (biweekly):
If you take the missed dose within 7 days of the scheduled day, just take it and go back to your original schedule. But if more than 7 days have passed, take the missed dose as soon as possible, then start a new schedule based on this new date.
For example, if you were supposed to inject on a Friday but took it the next Tuesday (within 7 days), keep injecting on Fridays going forward. However, if you were due Friday but took it 10 days later on a Monday, start giving the dose every other Monday from now on.
3. If the dose is every 4 weeks (monthly):
Same rule as the 2-week schedule. If within 7 days of a missed dose, take it and stick to the old schedule. If it is more than 7 days late, take it and start a new 4-week schedule from that new date.
Administration Instructions
Here’s how to prepare and inspect Dupixent before injecting it:
Information Recap
Administration depends on the age, weight, and condition of the individual being treated. Doses also vary by condition. Some people take it every 2 or 4 weeks, while others may need weekly injections. Initial doses are sometimes higher and may require two separate injections. For children, dupilumab dosing is more specific and based on weight.
It’s important to follow the dosing schedule. Make sure you inject it the right way and watch for any unusual side effects to stay on track with treatment.
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