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Dupixent Side Effects

Generic name: dupilumab

Medically reviewed by Philip Thornton, DipPharm. Last updated on Mar 28, 2023.

Note: This document contains side effect information about dupilumab. Some dosage forms listed on this page may not apply to the brand name Dupixent.

Applies to dupilumab: subcutaneous solution.

Serious side effects of Dupixent

Along with its needed effects, dupilumab (the active ingredient contained in Dupixent) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking dupilumab:

More common

Less common


Incidence not known

Other side effects of Dupixent

Some side effects of dupilumab may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Less common

For Healthcare Professionals

Applies to dupilumab: subcutaneous solution.


The most common adverse reactions were injection site reactions (includes erythema, edema, pruritus, pain, and swelling), conjunctivitis, allergic conjunctivitis, arthralgia, oral herpes, and eosinophilia.

-The most common adverse reactions reported in patients with atopic dermatitis included injection site reactions, conjunctivitis, blepharitis, oral herpes, keratitis, eye pruritus, other herpes simplex virus infection, dry eye, and eosinophilia.

-The most common adverse reactions reported in patients with asthma included injection site reactions, oropharyngeal pain, and eosinophilia.

-The most common adverse reactions reported in patients with chronic rhinosinusitis with nasal polyposis (CRSwNP) included injection site reactions, eosinophilia, insomnia, toothache, gastritis, arthralgia, and conjunctivitis.

-The most common adverse reactions reported in patients with eosinophilic esophagitis included injection site reactions, upper respiratory tract infections, arthralgia, and herpes viral infections.

-The most common adverse reactions reported in patients with prurigo nodularis included nasopharyngitis, conjunctivitis, herpes infection, dizziness, myalgia, and diarrhea.[Ref]


Uncommon (0.1% to 1%): Cardiovascular thromboembolic events (cardiovascular deaths, nonfatal myocardial infarctions, nonfatal strokes)

Frequency not reported: Vasculitis

Vasculitis consistent with eosinophilic granulomatosis with polyangiitis was reported in adult patients in the asthma development program and adult patients with comorbid asthma in the CRSwNP development program.


Frequency not reported: Skin papilloma

Postmarketing reports: Angioedema, facial skin reactions (including erythema, rash, scaling, edema, papules, pruritus, burning, pain)


Common (1% to 10%): Oral herpes, gastritis, toothache, diarrhea


Common (1% to 10%): Eosinophilia


Rare (0.01% to 0.1%): Anaphylactic reaction, serum sickness reaction, serum sickness-like reaction

Frequency not reported: Hypersensitivity reactions (including anaphylaxis, serum sickness/serum sickness-like reactions, angioedema, generalized urticaria, rash, erythema nodosum, erythema multiforme)


Common (1% to 10%): Antidrug antibodies (ADA), persistent ADA responses, neutralizing antibodies

Frequency not reported: Eosinophilic granulomatosis with polyangiitis


Very common (10% or more): Injection site reaction (includes injection site reaction, injection site erythema, injection site edema, injection site pruritus, injection site pain, injection site inflammation, injection site bruising, injection site swelling; up to 38%), injection site erythema (up to 14.6%)

Common (1% to 10%): Injection site edema, injection site pruritus


Common (1% to 10%): Arthralgia, myalgia (includes musculoskeletal pain, musculoskeletal chest pain)

Nervous system

Common (1% to 10%): Dizziness (includes postural dizziness, vertigo, positional vertigo)


Very common (10% or more): Conjunctivitis (includes conjunctivitis, allergic conjunctivitis, bacterial conjunctivitis, viral conjunctivitis, giant papillary conjunctivitis, eye irritation, eye inflammation; up to 20%)

Common (1% to 10%): Blepharitis, keratitis (includes keratitis, ulcerative keratitis, allergic keratitis, atopic keratoconjunctivitis, ophthalmic herpes simplex), eye pruritus, dry eye, allergic conjunctivitis, bacterial conjunctivitis

Frequency not reported: Ophthalmic herpes zoster

Postmarketing reports: Ulcerative keratitis


Common (1% to 10%): Other herpes simplex virus infection (includes herpes simplex, genital herpes, herpes simplex otitis externa, herpes virus infection; excludes eczema herpeticum), herpes infection (includes herpes viral infections, oral herpes, herpes simplex, genital herpes simplex, herpes zoster, ophthalmic herpes zoster), serious infections

Frequency not reported: Hand-foot-and-mouth disease, helminth infections (including enterobiasis, ascariasis), eczema herpeticum, herpes zoster


Common (1% to 10%): Insomnia


Very common (10% or more): Upper respiratory tract infections (includes coronavirus disease 2019 [COVID-19], sinusitis, upper respiratory tract infection; up to 18%)

Common (1% to 10%): Oropharyngeal pain, nasopharyngitis (includes pharyngitis)

Frequency not reported: Eosinophilic pneumonia

Eosinophilic pneumonia was reported in adult patients in the asthma development program.

Frequently asked questions


1. Product Information. Dupixent Pre-filled Syringe (dupilumab). sanofi-aventis. 2022.

2. Product Information. Dupixent (dupilumab). Sanofi-Aventis Australia Pty Ltd. 2022.

3. Product Information. Dupixent (dupilumab). Sanofi Genzyme. 2023.

Further information

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

Some side effects may not be reported. You may report them to the FDA.