If you have plaque psoriasis, your doctor might suggest Ilumya as a treatment option for you. It’s a prescription drug used to treat moderate to severe plaque psoriasis in adults.

The active ingredient in Ilumya is tildrakizumab-asmn. An active ingredient is what makes a drug work. Ilumya is a biologic drug, which means it’s made from living cells. It belongs to a group of drugs called interleukin inhibitors.

Ilumya is given as a subcutaneous injection (an injection under your skin) by a healthcare professional in a doctor’s office.

This article describes the dosages of Ilumya, as well as its strength and how to use it. To learn more about Ilumya, see this in-depth article.

Note: This article covers Ilumya’s usual dosages, which are provided by the drug’s manufacturer. But your doctor will prescribe the dosage that’s right for you.

Below you will find information about the most common dosages of Ilumya.

What is Ilumya’s form?

Ilumya comes as a liquid solution in a single-dose, prefilled syringe. It’s given as a subcutaneous injection (an injection under your skin) by a healthcare professional in a doctor’s office.

What strength does Ilumya come in?

Ilumya is 100 milligrams per 1 liter of liquid solution.

What are the usual dosages of Ilumya?

The information below describes dosages that are commonly used or recommended. Your doctor will determine the dosage that’s right for you.

The first dose of Ilumya is usually 100. A second dose of 100-mg is followed by 4 weeks. Your schedule is 100 Ilumya every 12 weeks after this.

Ilumya does not have a loading dose. A loading dose is a higher dose of medication that you give when your treatment begins to help the drug work faster.

In some cases, your doctor may suggest a dose increase to 200 mg. This would be an off-label use of Ilumya. (Off-label use means a drug is used in a way it hasn’t been approved for.)

Is Ilumya used long term?

Ilumya is a long-term treatment. If you and your doctor agree that it is safe and effective for you, you will likely use it for a long time.

Ilumya is given by a healthcare professional at a clinic or doctor’s office. It’s given as a subcutaneous injection (an injection under your skin).

“You will receive the injection in your thigh, upper arm, or belly, but not within 2 inches of your belly button. The healthcare professional will avoid areas that are bruised or tender. They won’t inject into areas with visible blood vessels.”

Your doctor will test you for active tuberculosis (TB) before your first Ilumya dose. If you have TB, it will need to be treated before you start Ilumya. If you’ve had TB in the past, but it’s currently inactive or latent, you may still need TB treatment before starting Ilumya. Your doctor will discuss your risks based on your medical history.

“Ilumya can be given at a doctor’s office or a clinic. If you miss your dose, call your doctor. They will adjust your schedule accordingly.”

If you need help remembering your Ilumya appointments, you can try using a medication reminder tool. This can include setting an alarm or downloading a reminder app on your phone.

The dosages provided by the drug manufacturer are described in the sections above. If your doctor recommends Ilumya, they will prescribe the correct amount. Some examples of questions you may want to ask them.

  • Will my dosage of Ilumya be different if I’m taking other plaque psoriasis medications?
  • Will my schedule change if I get an infection?
  • Will my dosage of Ilumya be different if I have liver problems?

For news on treatments and tips for managing your condition, sign up for Healthline’s psoriasis newsletter. And if you’re looking to connect with others who live with psoriasis, consider joining the online Bezzy psoriasis community.


Will my next dose need to be higher if I miss a dose of Ilumya?



Probably not. If you miss your dose, call your doctor. They will adjust your schedule if you missed a dose.

“Your doctor may discuss increasing your dose to 200 milligrams. This would be an off-label use of Ilumya. Off-label use is when a drug is used in a way that it isn’t approved for. This will be dependent on how well Ilumya is treating your condition. Your doctor will help you determine if the benefits of a dose increase outweigh the risks.”

The Healthline Pharmacist TeamAnswers represent the opinions of our medical experts. All content is strictly informational and should not be considered medical advice.

Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.