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Drugs reference index «Tysabri»

Tysabri


Tysabri

Generic Name: natalizumab (Intravenous route)

na-ta-LYE-zoo-mab

Intravenous routeSolution
  • Natalizumab increases the risk of progressive multifocal leukoencephalopathy (PML), an opportunistic viral infection of the brain that usually leads to death or severe disability. Although the cases of PML were limited to patients with recent or concomitant exposure to immunomodulators or immunosuppressants, there were too few cases to rule out the possibility that PML may occur with natalizumab monotherapy.
    • Because of the risk of PML, natalizumab is available only through a special restricted distribution program called the TOUCH™ Prescribing Program. Under the TOUCH™ Prescribing Program, only prescribers, infusion centers, and pharmacies associated with infusion centers registered with the program are able to prescribe, distribute, or infuse the product. In addition, natalizumab must be administered only to patients who are enrolled in and meet all the conditions of the TOUCH™ Prescribing Program.
    • Healthcare professionals should monitor patients on natalizumab for any new sign or symptoms that may be suggestive of PML. Natalizumab dosing should be withheld immediately at the first sign or symptoms suggestive of PML. For diagnosis, an evaluation that includes a gadolinium-enhanced magnetic resonance imaging scan of the brain and, when indicated, cerebrospinal fluid analysis for JC viral DNA are recommended .

Natalizumab increases the risk of progressive multifocal leukoencephalopathy (PML), an opportunistic viral infection of the brain that usually leads to death or severe disability. Natalizumab is available only through a special restricted distribution program called the TOUCH(TM) Prescribing Program in which only prescribers, infusion centers, and pharmacies associated with infusion centers registered with the program are able to prescribe, distribute, or infuse the product. Patients must be enrolled in and meet all the conditions of the TOUCH(TM) Prescribing Program to receive the drug. Monitor patients for any new sign or symptoms that may be suggestive of PML and discontinue therapy at the first sign or symptoms suggestive of PML .

Commonly used brand name(s):

In the U.S.

  • Tysabri

Available Dosage Forms:

  • Solution

Therapeutic Class: Immune Suppressant

Pharmacologic Class: Monoclonal Antibody

Uses For Tysabri

Natalizumab is used to treat patients with relapsing forms of multiple sclerosis (MS), and patients who have not been helped by other medicines. This medicine will not cure MS, but may delay physical disability and extend the time between relapses .

Natalizumab is also used to treat Crohn's disease (CD) in patients who have not been helped by other medicines. This medicine will not cure CD, but may prevent it from occurring again .

This medicine is only available with your doctor's prescription .

Before Using Tysabri

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

Appropriate studies have not been performed on the relationship of age to the effects of natalizumab in the pediatric population. Safety and efficacy have not been established .

Geriatric

Appropriate studies on the relationship of age to the effects of natalizumab have not been performed in the geriatric population. However, no geriatrics-specific problems have been documented to date .

Pregnancy

Pregnancy CategoryExplanation
All TrimestersCAnimal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.

Breast Feeding

There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Interactions with Medicines

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.

Interactions with Food/Tobacco/Alcohol

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Other Medical Problems

The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

  • Kidney problems—Use with caution. natalizumab has not been studied in patients with this condition .
  • Liver disease—Use with caution. This medicine may make this condition worse .
  • Progressive multifocal leukoencephalopathy (PML; a rare viral infection of the brain that causes severe muscle disability)—People who have PML or who have ever had PML should not receive this medicine .
  • Weakened immune system (e.g., HIV infection, AIDS, leukemia, lymphoma, or organ transplant recipient)—This medicine is not recommended, because people with these conditions may be more likely to get infections .

Proper Use of Tysabri

A nurse or other trained health professional will give you this medicine. This medicine is given through a needle placed in one of your veins .

Natalizumab comes with a medication guide. It is very important that you read and understand this information. Be sure to ask your doctor about anything you do not understand.

You must enroll in a prescribing program called TOUCH in order to begin receiving natalizumab. Your doctor will explain the program and have you sign an enrollment form. Be sure to ask your doctor if you have any questions about the TOUCH prescribing program. It is very important that you understand and follow all of the instructions .

Precautions While Using Tysabri

Your doctor will want to check your progress 3 months after the first injection, 6 months after the first injection, and every 6 months after that .

Tell your doctor if you are currently taking interferon beta (e.g., Avonex®, Betaseron®, Rebif®), azathioprine (e.g., Imuran®), 6-mercaptopurine (e.g., Purinethol®), cyclosporine (e.g., Gengraf®, Neoral®, Sandimmune®), or methotrexate (e.g., Rheumatrex®, Trexall®). Natalizumab should not be given together with these medicines .

This medicine may increase your risk of developing infections, including a serious brain infection called progressive multifocal leukoencephalopathy (PML). Check with your doctor right away if you are having more than one of these symptoms: back pain; blurred vision; confusion; convulsions; dizziness; drowsiness; fever; headache; or unusual tiredness or weakness .

Liver problems may occur while you are using this medicine. Stop using this medicine and check with your doctor right away if you are having more than one of these symptoms: abdominal pain or tenderness; clay-colored stools; dark urine; decreased appetite; fever; headache; itching; loss of appetite; nausea and vomiting; skin rash; swelling of the feet or lower legs; unusual tiredness or weakness; or yellow eyes or skin .

This medicine may cause a serious type of allergic reaction called anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Tell your doctor right away if you have a rash; hives; itching; swelling of the face, tongue, and throat; trouble breathing; or chest pain after you get the injection .

Tysabri Side Effects

Along with its needed effects, a medicine 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:

More common
  • Body produces substance that can bind to drug making it less effective or cause side effects
  • cough
  • difficulty swallowing
  • dizziness
  • fast heartbeat
  • hives
  • itching
  • puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  • shortness of breath
  • skin rash
  • tightness in chest
  • unusual tiredness or weakness
  • wheezing
Rare
  • Abdominal fullness
  • blurred vision
  • changes in behavior
  • chest pain
  • confusion
  • difficult or labored breathing
  • faintness, or lightheadedness when getting up from a lying or sitting position suddenly
  • feeling of warmth
  • feeling unusually cold
  • fever
  • gaseous abdominal pain
  • nausea
  • redness of the face, neck, arms and occasionally, upper chest
  • shivering
  • sneezing
  • sore throat
  • sweating
  • thoughts of killing oneself
  • troubled breathing
  • yellow eyes or skin
Incidence not known
  • Back pain
  • convulsions
  • drowsiness
  • headache

Some side effects 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:

More common
  • Bladder pain
  • blistering, crusting, irritation, itching, or reddening of skin
  • bloody or cloudy urine
  • cracked, dry, scaly skin
  • diarrhea
  • difficult, burning, or painful urination
  • difficulty in moving
  • discouragement
  • feeling sad or empty
  • frequent, strong, or increased urge to urinate
  • headache
  • irregular menstruation
  • irritability
  • itching of the vagina or genital area
  • lack of appetite
  • loss of appetite
  • loss of interest or pleasure
  • lower back or side pain
  • muscle pain or stiffness
  • nausea
  • pain during sexual intercourse
  • pain in joints
  • pain, cramps, heavy bleeding
  • passing urine more often
  • stomach pain
  • stomach soreness or discomfort
  • swelling
  • swollen glands
  • thick, white vaginal discharge with no odor or with a mild odor
  • trouble concentrating
  • trouble sleeping
Less common
  • Absent, missed, or irregular menstrual periods
  • chest discomfort
  • fainting
  • local bleeding
  • shakiness in legs, arms, hands, or feet
  • stopping of menstrual bleeding
  • trembling or shaking of hands or feet

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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  • Tysabri Prescribing Information (FDA)
  • Tysabri MedFacts Consumer Leaflet (Wolters Kluwer)
  • Tysabri Consumer Overview
  • Natalizumab Professional Patient Advice (Wolters Kluwer)

See Also...