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Injectable Medicine

STELARA 90 mg Prefilled Syringe: Uses, Dosing & Safety

Quick summary: STELARA 90 mg solution for injection in a pre-filled syringe contains ustekinumab and is used for certain inflammatory conditions. It is given by subcutaneous injection, and the exact schedule depends on the...

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Medical disclaimer

This content is for educational purposes only and does not replace medical advice, diagnosis or treatment from a qualified healthcare professional.

Quick summary: STELARA 90 mg solution for injection in a pre-filled syringe contains ustekinumab and is used for certain inflammatory conditions. It is given by subcutaneous injection, and the exact schedule depends on the condition being treated and the prescriber’s instructions.

Key point: Always follow the official patient leaflet and your healthcare professional’s guidance for preparation, administration, and monitoring.

Medical disclaimer: This article is for general information only and does not replace advice from a doctor, nurse, or pharmacist. It does not provide personal diagnosis, treatment decisions, or instructions to start, stop, or change any medicine.

What STELARA 90 mg prefilled syringe is

STELARA 90 mg solution for injection in a pre-filled syringe is a biologic medicine containing ustekinumab. It is designed for subcutaneous injection and is used in the management of certain chronic inflammatory conditions.

The pre-filled syringe format is intended to make administration more straightforward once a patient has been trained by a healthcare professional.

How STELARA works

STELARA is a monoclonal antibody that targets specific proteins involved in immune activity. It acts on interleukin-12 and interleukin-23, which are linked to inflammation in some immune-mediated diseases.

By helping regulate this immune response, STELARA may reduce symptoms such as skin inflammation and joint discomfort in appropriate patients.

Uses and indications

According to the original content, STELARA is used for:

  • Moderate to severe plaque psoriasis
  • Psoriatic arthritis
  • Crohn’s disease
  • Ulcerative colitis

The original content also states that it is approved for use in patients aged 6 years and older. Because approvals can vary by country and indication, readers should confirm the exact licensed use with the official leaflet or a healthcare professional.

Dosage information for psoriatic arthritis

The original content states that dosing for psoriatic arthritis typically begins with an initial 45 mg dose, followed by maintenance doses every 12 weeks. It also notes that patients weighing over 220 lbs may receive 90 mg.

Because dosing depends on the condition, body weight, and local prescribing information, the exact regimen should be checked with the prescriber or official product information.

Topic What the original content says
Medicine type Biologic medicine containing ustekinumab
Route Subcutaneous injection
Psoriatic arthritis dosing Initial 45 mg, then every 12 weeks; 90 mg may be used in patients over 220 lbs
Administration Can be given in a clinical setting or at home after training

How it is administered

STELARA is given as a subcutaneous injection. The original content notes that it may be administered in a clinic or at home after training.

General steps mentioned in the source include:

  1. Clean the injection site.
  2. Allow the syringe to reach room temperature before use, if instructed.
  3. Inject under the skin as shown by a healthcare professional.
  4. Dispose of the used syringe in a proper sharps container.

Patients should only use the injection technique they have been taught and should follow the official leaflet for the product they have been prescribed.

Warnings and precautions

The original content highlights several important precautions:

  • Known hypersensitivity to ustekinumab or any component of the formulation
  • Severe infections, since the medicine may increase the risk of serious infections
  • History of tuberculosis, which should be assessed before treatment

It is important to tell a healthcare professional about any past infections, immune conditions, or other medicines being used, so that appropriate screening and monitoring can be arranged.

Possible adverse reactions

The original content lists the following common adverse reactions:

  • Injection site reactions such as pain, redness, or swelling
  • Headache
  • Fatigue
  • Infections, including upper respiratory infections

It also notes that serious infections or hypersensitivity reactions can occur and may need urgent medical attention. Any new or worsening symptoms should be discussed with a healthcare professional.

What to verify with a doctor or pharmacist

If you are reading about STELARA 90 mg prefilled syringe, it is sensible to confirm the following with a clinician or pharmacist:

  • Whether this strength is the one prescribed for the condition being treated
  • The exact injection schedule in the local product information
  • How to store the syringe before use
  • How to dispose of used syringes safely
  • Whether any screening or monitoring is needed before treatment

Frequently asked questions

▸ How do you use a STELARA prefilled syringe?

The original content says patients should receive proper training from a healthcare professional, keep the syringe refrigerated until use, allow it to reach room temperature if instructed, clean the injection site, inject under the skin, and dispose of the syringe in a sharps container.

▸ Does the STELARA 90 mg prefilled syringe contain latex?

The original content states that the STELARA 90 mg prefilled syringe does not contain latex. If you have a latex allergy, it is still sensible to confirm the packaging and leaflet for the exact product supplied.

▸ What does STELARA 90 mg PFS mean?

PFS means pre-filled syringe. In this context, it refers to a single-use syringe containing 90 mg of ustekinumab.

▸ What conditions is STELARA used for?

The original content lists plaque psoriasis, psoriatic arthritis, Crohn’s disease, and ulcerative colitis.

▸ How often is STELARA given for psoriatic arthritis?

The original content says maintenance doses are typically given every 12 weeks after the initial dose, but the exact schedule should be confirmed with the prescriber or official leaflet.

▸ How much does STELARA 90 mg cost?

Cost can vary depending on country, insurance coverage, and pharmacy pricing. A pharmacist or healthcare provider can help you check the current price and any available support options.

Safety reminder: If you notice signs of infection, an allergic reaction, or any unexpected symptoms after an injection, seek medical advice promptly. Always follow the official patient leaflet and the instructions given by your healthcare team.

Editorial note Active Ingredients Online Editorial Team This article is prepared as educational medicine information for general readers. It is written to support understanding of active ingredients, medicine uses, possible side effects, precautions and safety-related questions.
Published: October 7, 2025 Updated: May 10, 2026 Educational content

Medical disclaimer

This content is for educational purposes only. It should not be used as a substitute for professional medical advice, diagnosis or treatment. Always ask a doctor, pharmacist or qualified healthcare professional before starting, stopping or changing any medicine.

Sources and verification

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Final note

Medicine information can change and may vary depending on country, product formulation, patient history and professional guidance. Always check official medicine information and ask a healthcare professional for personal medical questions.

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