Tremfya Side Effects

Generic name: guselkumab

Medically reviewed by Philip Thornton, DipPharm. Last updated on Apr 17, 2024.

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

Applies to guselkumab: subcutaneous solution.

Serious side effects of Tremfya

Along with its needed effects, guselkumab (the active ingredient contained in Tremfya) 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 guselkumab:

More common

• Body aches or pain
• chills
• cough
• difficulty in breathing
• ear congestion
• fever
• headache
• loss of voice
• nasal congestion
• runny nose
• sneezing
• sore throat
• unusual tiredness or weakness

Less Common

• Burning or stinging of the skin
• diarrhea
• itching in the genital or other skin areas
• loss of appetite
• nausea
• painful cold sores or blisters on the lips, nose, eyes, or genitals
• scaling
• stomach pain

Rare

• Headache, severe and throbbing
• hives or welts, itching, skin rash
• white patches in the mouth or throat or on the tongue

Other side effects of Tremfya

Some side effects of guselkumab 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:

Less common

• Bleeding, blistering, burning, coldness, discoloration of the skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, ulceration, or warmth at the injection site
• difficulty in moving
• muscle pain or stiffness
• pain in the joints

Rare

• Redness of the skin

For Healthcare Professionals

Applies to guselkumab: subcutaneous solution.

Immunologic

Very common (10% or more): Infections (23%)

Common (1% to 10%): Tinea infections, herpes simplex infections, immunogenicity^[Ref]

Local

Common (1% to 10%): Injection site reactions (e.g., injection site erythema, bruising, hematoma, hemorrhage, swelling, edema, pruritus, pain, discoloration, induration, inflammation, urticaria)^[Ref]

Musculoskeletal

Common (1% to 10%): Arthralgia^[Ref]

Hepatic

Common (1% to 10%): Elevated liver enzymes^[Ref]

Respiratory

Very common (10% or more): Respiratory tract infection (e.g., nasopharyngitis, upper respiratory tract infection, pharyngitis, viral upper respiratory tract infection) (14%)^[Ref]

Nervous system

Common (1% to 10%): Headache^[Ref]

Gastrointestinal

Common (1% to 10%): Diarrhea, gastroenteritis (including viral gastroenteritis)^[Ref]

Hypersensitivity

Uncommon (0.1% to 1%): Hypersensitivity

Frequency not reported: Anaphylaxis^[Ref]

Dermatologic

Common (1% to 10%): Urticaria, rash^[Ref]

Frequently asked questions

• What are monoclonal antibodies?
• How long does it take for Tremfya to work?
• How and where do you inject Tremfya?
• How long can Tremfya be out of the fridge?
• Can Tremfya cause cancer?
• Is Tremfya a biological?
• What are the new drugs for plaque psoriasis?
• What causes Plaque Psoriasis?
• How does Tremfya work to treat plaque and psoriatic arthritis?

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.

Medical Disclaimer