Idamycin PFS

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

This medicine can pass into body fluids (urine, feces, vomit). For at least 48 hours after you receive a dose, avoid allowing your body fluids to come into contact with your hands or other surfaces. Caregivers should wear rubber gloves while cleaning up a patient's body fluids, handling contaminated trash or laundry or changing diapers. Wash hands before and after removing gloves. Wash soiled clothing and linens separately from other laundry.

Avoid being near people who are sick or have infections. Tell your doctor at once if you develop signs of infection.

Avoid activities that may increase your risk of bleeding or injury. Use extra care to prevent bleeding while shaving or brushing your teeth.

Do not receive a "live" vaccine while using idarubicin, or you could develop a serious infection. Live vaccines include measles, mumps, rubella (MMR), rotavirus, typhoid, yellow fever, varicella (chickenpox), zoster (shingles), and nasal flu (influenza) vaccine.

Other drugs may interact with idarubicin, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.

No formal drug interaction studies to date.1

Specific Drugs

Excipients in commercially available drug preparations may have clinically important effects in some individuals; consult specific product labeling for details.

Please refer to the ASHP Drug Shortages Resource Center for information on shortages of one or more of these preparations.

A nurse or other trained health professional will give you this medicine in a hospital or cancer treatment center. This medicine is given through a needle placed in one of your veins. The medicine must be injected slowly, so your IV tube will need to stay in place for 10 to 15 minutes every day for 3 days.

Idarubicin is sometimes given together with certain other medicines. If you are receiving a combination of medicines, it is important that you receive each one at the proper time. If you are taking some of these medicines by mouth, ask your doctor to help you plan a way to take them at the right times.

While you are receiving this medicine, your doctor may want you to drink extra fluids so that you will pass more urine. This will help prevent kidney problems and keep your kidneys working well.

Idarubicin often causes nausea and vomiting. However, it is very important that you continue to receive it, even if you begin to feel ill. Ask your doctor for ways to lessen these effects.

Missed Dose

This medicine needs to be given on a fixed schedule. If you miss a dose, call your doctor, home health caregiver, or treatment clinic for instructions.

It is very important that your doctor check you closely to make sure that this medicine is working properly. Blood and urine tests may be needed to check for unwanted effects.

Check with your doctor right away if you have chest pain or discomfort, fast or irregular heartbeat, swelling of the feet and lower legs, or troubled breathing after receiving this medicine.

Idarubicin can temporarily lower the number of white blood cells in your blood, increasing the chance of getting an infection. It can also lower the number of platelets, which are necessary for proper blood clotting. If this occurs, there are certain precautions you can take, especially when your blood count is low, to reduce the risk of infection or bleeding:

• If you can, avoid people with infections. Check with your doctor immediately if you think you are getting an infection or if you get a fever or chills, cough or hoarseness, lower back or side pain, or painful or difficult urination.
• Check with your doctor immediately if you notice any unusual bleeding or bruising, black, tarry stools, blood in the urine or stools, or pinpoint red spots on your skin.
• Be careful when using a regular toothbrush, dental floss, or toothpick. Your medical doctor, dentist, or nurse may recommend other ways to clean your teeth and gums. Check with your medical doctor before having any dental work done.
• Do not touch your eyes or the inside of your nose unless you have just washed your hands and have not touched anything else in the meantime.
• Be careful not to cut yourself when you are using sharp objects such as a safety razor or fingernail or toenail cutters.
• Avoid contact sports or other situations where bruising or injury could occur.

If idarubicin accidentally seeps out of the vein into which it is injected, it may damage some tissues and cause scarring. Tell your right away if you notice redness, pain, or swelling at the injection site.

While you are being treated with idarubicin, and after you stop treatment with it, do not have any immunizations (vaccinations) without your doctor's approval. Idarubicin may lower your body's resistance, and there is a chance you might get the infection the immunization is meant to prevent. In addition, other persons living in your household should not take oral polio vaccine since there is a chance they could pass the polio virus on to you. Also, avoid persons who have taken oral polio vaccine. Do not get close to them, and do not stay in the same room with them for very long. If you cannot take these precautions, you should consider wearing a protective face mask that covers the nose and mouth.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

• Upset stomach or throwing up.
• Belly pain or loose stools (diarrhea).
• Stomach cramps.
• Headache.
• Hair loss.

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.

There is no known antidote to idarubicin. Two cases of fatal overdosage in patients receiving therapy for AML have been reported. The doses were 135 mg/m2 over 3 days and 45 mg/m2 of idarubicin and 90 mg/m2 of daunorubicin over a three day period.

It is anticipated that overdosage with idarubicin will result in severe and prolonged myelosuppression and possibly in increased severity of gastrointestinal toxicity. Adequate supportive care including platelet transfusions, antibiotics and symptomatic treatment of mucositis is required. The effect of acute overdose on cardiac function is not fully known, but severe arrhythmia occurred in 1 of the 2 patients exposed. It is anticipated that very high doses of idarubicin may cause acute cardiac toxicity and may be associated with a higher incidence of delayed cardiac failure.

Disposition studies with idarubicin in patients undergoing dialysis have not been carried out. The profound multicompartment behavior, extensive extravascular distribution and tissue binding, coupled with the low unbound fraction available in the plasma pool make it unlikely that therapeutic efficacy or toxicity would be altered by conventional peritoneal or hemodialysis.

(See WARNINGS)

For induction therapy in adult patients with AML the following dose schedule is recommended:

Idamycin PFS Injection 12 mg/m2 daily for 3 days by slow (10 to 15 min) intravenous injection in combination with cytarabine. The cytarabine may be given as 100 mg/m2 daily by continuous infusion for 7 days or as cytarabine 25 mg/m2 intravenous bolus followed by cytarabine 200 mg/m2 daily for 5 days continuous infusion. In patients with unequivocal evidence of leukemia after the first induction course, a second course may be administered. Administration of the second course should be delayed in patients who experience severe mucositis, until recovery from this toxicity has occurred, and a dose reduction of 25% is recommended. In patients with hepatic and/or renal impairment, a dose reduction of Idamycin PFS should be considered. Idamycin PFS should not be administered if the bilirubin level exceeds 5 mg%. (See WARNINGS.)

The benefit of consolidation in prolonging the duration of remissions and survival is not proven. There is no consensus regarding optional regimens to be used for consolidation. (See CLINICAL STUDIES for doses used in U.S. Clinical studies.)

Preparation and Administration Precautions

Caution in handling the solution must be exercised as skin reactions associated with Idamycin PFS may occur. Skin accidentally exposed to Idamycin PFS should be washed thoroughly with soap and water and if the eyes are involved, standard irrigation techniques should be used immediately. The use of goggles, gloves, and protective gowns is recommended during preparation and administration of the drug.

Care in the administration of Idamycin PFS will reduce the chance of perivenous infiltration. It may also decrease the chance of local reactions such as urticaria and erythematous streaking. During intravenous administration of Idamycin PFS extravasation may occur with or without an accompanying stinging or burning sensation even if blood returns well on aspiration of the infusion needle. If any signs or symptoms of extravasation have occurred, the injection or infusion should be immediately terminated and restarted in another vein. If it is known or suspected that subcutaneous extravasation has occurred, it is recommended that intermittent ice packs (1/2 hour immediately, then 1/2 hour 4 times per day for 3 days) be placed over the area of extravasation and that the affected extremity be elevated. Because of the progressive nature of extravasation reactions, the area of injection should be frequently examined and plastic surgery consultation obtained early if there is any sign of a local reaction such as pain, erythema, edema or vesication. If ulceration begins or there is severe persistent pain at the site of extravasation, early wide excision of the involved area should be considered.

Idamycin PFS should be administered slowly (over 10 to 15 minutes) into the tubing of a freely running intravenous infusion of Sodium Chloride Injection, USP (0.9%) or 5% Dextrose Injection, USP. The tubing should be attached to a Butterfly needle or other suitable device and inserted preferably into a large vein.

Incompatibility

Unless specific compatibility data are available, Idamycin PFS should not be mixed with other drugs. Precipitation occurs with heparin. Prolonged contact with any solution of an alkaline pH will result in degradation of the drug.

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration whenever solution and containers permit.

NDC 0013-2576-91

5 mL Single-Dose CYTOSAFE® Vial

Idamycin PFS®
idarubicin hydrochloride
injection

5 mg/5 mL
(1 mg/mL)

For IV use only
Sterile, Isotonic Solution

Pfizer Injectables

Rx only

NDC 0013-2586-91

10 mL Single-Dose CYTOSAFE® Vial

Idamycin PFS®
idarubicin hydrochloride
injection

10 mg/10 mL
(1 mg/mL)

For IV use only
Sterile, Isotonic Solution

Pfizer Injectables

Rx only

Applies to idarubicin: intravenous powder for solution, intravenous solution

Along with its needed effects, idarubicin (the active ingredient contained in Idamycin PFS) 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 or nurse immediately if any of the following side effects occur while taking idarubicin:

• Black, tarry stools
• bleeding gums
• blood in the urine or stools
• coughing up blood
• cough or hoarseness
• difficulty with breathing or swallowing
• dizziness
• fever or chills
• increased menstrual flow or vaginal bleeding
• lower back or side pain
• nosebleeds
• painful or difficult urination
• paralysis
• pinpoint red spots on the skin
• prolonged bleeding from cuts
• red or dark brown urine
• red or black, tarry stools
• sores in the mouth and on the lips
• unusual bleeding or bruising

• Fast or irregular heartbeat
• joint pain
• pain at the injection site
• swelling of the feet and lower legs

• Skin rash or hives
• stomach pain (severe)

Some side effects of idarubicin 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:

• Abdominal or stomach cramps
• diarrhea
• headache
• nausea and vomiting

• Darkening or redness of the skin (after x-ray treatment)
• numbness or tingling of the fingers, toes, or face

After you stop using this medicine, it may still produce some side effects that need attention. During this period of time, check with your doctor immediately if you notice the following side effects:

• Fast or irregular heartbeat
• shortness of breath
• swelling of the feet and lower legs