Ontak : Uses, Side Effects, Interactions & More
You may experience a serious or life-threatening reaction while you receive a dose of Ontak. You will receive each dose of medication in a medical facility, and your doctor will monitor you carefully while you are receiving the medication. Your doctor will prescribe certain medications to prevent these reactions. You will take these medications by mouth shortly before you receive each dose of Ontak. If you experience any of the following symptoms during or for 24 hours after your infusion, tell your doctor immediately: fever, chills, hives, difficulty breathing or swallowing, slowed breathing, fast heartbeat, tightening of the throat, or chest pain.
Some people who received Ontak developed life-threatening capillary leak syndrome (a condition that causes the body to keep excess fluid, low blood pressure, and low levels of a protein [albumin] in the blood). Capillary leak syndrome may occur up to 2 weeks after Ontak is given and may continue or get worse even after treatment is stopped. If you experience any of the following symptoms, call your doctor immediately: swelling of the hands, feet, ankles, or lower legs; weight gain; shortness of breath; fainting; dizziness or lightheadedness; or fast or irregular heartbeat.
Ontak may cause vision changes, including blurred vision, loss of vision, and loss of color vision. Vision changes may be permanent. If you experience any changes in vision call your doctor immediately.
Keep all appointments with your doctor and the laboratory. Your doctor will order certain tests to check your body’s response to Ontak.
Why is this medication prescribed?
Ontak (Denileukin diftitox) is used to treat cutaneous T-cell lymphoma (CTCL, a group of cancers of the immune system that first appear as skin rashes) in people whose disease has not improved, has gotten worse, or has come back after taking other medications. Ontak is in a class of medications called cytotoxic proteins. It works by killing cancer cells.
How should this medicine be used?
Ontak (Denileukin diftitox) comes as a solution (liquid) to be injected over 30 to 60 minutes intravenously (into a vein). Ontak is administered by a doctor or nurse in a medical office or infusion center. It is usually given once a day for 5 days in a row. This cycle may be repeated every 21 days for up to eight cycles.
Other uses for this medicine
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
What special precautions should I follow?
Before taking Ontak,
- tell your doctor and pharmacist if you are allergic to Ontak or any of the ingredients in Ontak. Ask your pharmacist for a list of the ingredients.
- tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take.
- tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding.
What special dietary instructions should I follow?
Unless your doctor tells you otherwise, continue your normal diet.
What should I do if I forget a dose?
If you miss an appointment to receive a dose of Ontak, call your doctor right away.
What side effects can this medication cause?
Ontak, may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
- loss of appetite
- change in ability to taste
- feeling tired
- pain, including back, muscle, or joint pain
Some side effects can be serious. If you experience any symptoms listed in the IMPORTANT WARNING section, call your doctor immediately.
Ontak may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration’s (FDA) MedWatch Adverse Event Reporting program online (http://www.fda.gov/Safety/MedWatch) or by phone (1-800-332-1088).
What should I know about storage and disposal of this medication?
This medication will be stored at your doctor’s office or clinic.
In case of emergency/overdose
In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at https://www.poisonhelp.org/help. If the victim has collapsed, had a seizure, has trouble breathing, or can’t be awakened, immediately call emergency services at 911.
Symptoms of overdose may include the following:
What other information should I know?
Ask your pharmacist any questions you have about Ontak.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
Disclaimer: DrLinex has made every effort to ensure that all information is factually accurate, comprehensive and up-to-date. However, this article should not be used as a licensed health care professional’s choice of knowledge and expertise. You should always consult your doctor or other health care professional before taking any medication. The information given here is subject to change and it has not been used to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions or adverse effects. The lack of warning or other information for any drug does not indicate that the combination of medicine or medication is safe, effective or appropriate for all patients or all specific uses.