Concerns About Being Allergic To Skyrizi

In our latest question and answer, the pharmacist discusses concerns about a potential allergy to Skyrizi.

3 min read Updated Jun 2026 709 views
Concerns About Being Allergic To Skyrizi
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Susan asked

My husband has been prescribed Skyrizi. One caution states not to take it if allergic. How can he determine if he's allergic? Also, what non-human species are used in the formulation of the medicine? Thank you!

Aug 10, 2023
The quick answer
  • Although the ingredients in Skyrizi aren't known to be common allergens, allergic reactions can be unpredictable so it's important to watch for warning signs.
  • If you experience fainting, swelling of the face or throat, or trouble breathing after taking Skyrizi, seek emergency medical help immediately.
  • Contact your doctor right away if you notice any unusual symptoms or have concerns about how your body is responding to the medication.
A quick summary of Dr. Brian Staiger, PharmD's full answer below, condensed by AI from that answer only (not from any outside source). The pharmacist's answer is the source of record.

Quick Answer

Although the listed ingredients in Skyrizi aren't known to be common allergens, it's essential to remain vigilant in regard to symptoms that could signal an allergic reaction.

If you experience symptoms like fainting, swelling, or trouble breathing, seek emergency medical help immediately.

Detailed Answer

I understand your concern, and it's great that you're being proactive about your husband's health.

Allergic reactions can indeed be tricky to predict, and it's always better to err on the side of caution, especially when starting a new medication like Skyrizi.

Firstly, your husband should definitely pay close attention to any signs of an allergic reaction. The prescribing information for Skyrizi mentions some key symptoms to watch out for, such as:

  • Feeling faint or dizzy
  • Experiencing low blood pressure
  • Swelling of the face, eyelids, lips, mouth, tongue, or throat
  • Having trouble breathing or a feeling of throat tightness

If he notices any of the above symptoms, it's crucial to seek immediate medical help.

Now, regarding the ingredients in Skyrizi, it's good to know what's in the medication. The main active ingredient is risankizumab-rzaa, which is a monoclonal antibody designed to target interleukin-23 (IL-23), an immune system protein. This component is produced using recombinant DNA technology in Chinese hamster ovary cells.

The other components of Skyrizi, listed as inactive ingredients, include:

  • Glacial acetic acid
  • Polysorbate 20
  • Sodium acetate
  • Trehalose
  • Water for Injection

When speaking specifically about Chinese hamster ovary (CHO) cells, some individuals may have allergies or sensitivities to them. These cells are very commonly used in biotechnology for producing therapeutic proteins, including in the manufacture of certain biologic drugs such as monoclonal antibodies. In fact, studies suggest that around 80% of monoclonal antibody drugs are produced using CHO cells. However, it's essential to note that an allergy to CHO cells would be quite rare and specific to individuals who may have a hypersensitivity to proteins or other components derived from these cells. Again, it would be exceptionally difficult to predict who may have an allergy to these types of cells.

Additionally, it's important to note that the inactive ingredients in Skyrizi aren't common allergens either.

Nevertheless, it's still essential to be vigilant and aware of what an allergic reaction may look like. Allergic reactions can sometimes surprise us, and everyone's body reacts differently.

It's always possible to develop an allergy to something seemingly innocuous. If there's a history of severe allergies in your husband's medical background or if he's particularly sensitive, it's even more crucial to keep a close eye on how his body responds to the medication. Remember, if you have any concerns or if you notice anything unusual, don't hesitate to contact your doctor.

Final Words

I hope you found this helpful! Be sure to reach back out again if anything else comes up!

References & sources
  1. Skyrizi Prescribing Information — RxAbbive
  2. Chinese hamster ovary cells can produce galactose-α-1,3-galactose antigens on proteins — PubMed
Glossary — Terms in This Answer
Monoclonal antibody
A laboratory-made protein designed to target and bind to specific substances in the body, used as a medication to treat disease.
Interleukin-23
A protein in the immune system that plays a role in inflammation and immune responses in the body.
Risankizumab-rzaa
The active medication ingredient in Skyrizi that works as a monoclonal antibody to reduce inflammation.
Recombinant DNA technology
A method of creating medications by combining genetic material from different sources to produce therapeutic proteins.
Chinese hamster ovary cells
Lab-grown cells from hamsters commonly used to manufacture biologic medications like monoclonal antibodies.
Hypersensitivity
An extreme or exaggerated immune system reaction to a substance that most people can tolerate.
Inactive ingredients
Components in a medication that don't provide the therapeutic effect but help with stability, consistency, or delivery of the active drug.
Anaphylaxis
A severe, potentially life-threatening allergic reaction that occurs rapidly after exposure to an allergen.
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Dr. Brian Staiger, PharmD
About the pharmacist

Dr. Brian Staiger, PharmD

Clinical Pharmacy

Doctor of Pharmacy, board certified clinical pharmacist (BCPS), American Herbalist Guild, Medication Therapy Management certified

Brian Staiger, PharmD, BCPS, is a licensed pharmacist with more than 13 years of experience across retail pharmacy, clinical pharmacy, medication safety, pharmacy program development, and healthcare administration. He is the founder of HelloPharmacist.com, where he helps patients...

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