This medication is used to treat moderate to severe plaque psoriasis. Tildrakizumab belongs to a class of drugs known as monoclonal antibodies. It works by blocking a certain natural substance in your body (interleukin-23) that may lead to the overgrowth of skin cells and redness/swelling seen in plaque psoriasis. Tildrakizumab can help lessen the symptoms of plaque psoriasis, including red, scaly, itchy patches of skin.

Read the Medication Guide provided by your pharmacist before you start using tildrakizumab and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

Before treatment with this medication, your doctor will test you for tuberculosis (TB). Your doctor should also monitor you for symptoms of TB during and after treatment with this drug. If needed, treatment for tuberculosis or other infections should be given before receiving this medication.

This medication is given by injection under the skin by a health care professional. It is given as directed by your doctor. After the first dose, another dose is usually given 4 weeks later, followed by doses every 12 weeks. The injection is given in the upper arms, thighs, or abdomen (at least 2 inches from your belly button). The dosage is based on your medical condition and response to treatment.

The injection site should be changed each time to lessen injury under the skin. Your health care provider should avoid injecting into skin that is tender, bruised, red, hard, thick, scaly, or affected by psoriasis. To lessen bruising, do not rub the injection site after a shot.

Use this medication regularly to get the most benefit from it. To help you remember, mark your calendar with a reminder.

Tell your doctor if your condition does not get better or if it gets worse.

Bruising, redness, itching, pain, or swelling at the injection site may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

This medication may lower your ability to fight infections. This may make you more likely to get a serious (rarely fatal) infection or make any infection you have worse. Tell your doctor right away if you have any signs of infection (such as sore throat that doesn't go away, fever, chills, cough).

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including:

• rash
• itching/swelling (especially of the face/tongue/throat)
• severe dizziness
• trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Before using tildrakizumab, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of:

• current/recent/returning infection (such as tuberculosis, herpes)

Tildrakizumab can make you more likely to get infections or may make current infections worse. Stay away from anyone who has an infection that may easily spread (such as chickenpox, COVID-19, measles, flu). Talk to your doctor if you have been exposed to an infection or for more details.

Tell your health care professional that you are using tildrakizumab before having any immunizations/vaccinations. Avoid contact with people who have recently received live vaccines (such as flu vaccine inhaled through the nose).

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.

It is unknown if this medication passes into breast milk. Consult your doctor before breastfeeding.

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call 1-800-222-1222. Canada residents can call 1-844-764-7669.

Keep all medical and lab appointments.

It is important to get each dose of this medication as scheduled. If you miss a dose, ask your doctor or pharmacist right away for a new dosing schedule.

Not applicable. This medication is given in a hospital or clinic or doctor's office and will not be stored at home.