Technetium tc 99m tetrofosmin (Injection)

Technetium Tc 99m tetrofosmin (Injection) is a radiopharmaceutical. Radiopharmaceuticals are radioactive agents that can be used to find and treat certain diseases or to study how the body's organs function.

Technetium Tc 99m tetrofosmin (Injection) helps your doctor see an image of your heart to check how well it works during exercise or at rest. It is also used to assess patients who may have coronary artery disease or heart failure.

This medicine is to be given only by or under the direct supervision of a doctor who has specialized training in nuclear medicine.

It is very important that your doctor checks you closely while you are receiving this medicine. This will help your doctor see if the medicine is working correctly and to decide if you should keep receiving it.

This medicine may cause serious allergic reactions, including anaphylaxis. Anaphylaxis can be life-threatening and needs immediate medical attention. Contact your doctor right away if you have a rash, itching, swelling of the face, tongue, and throat, trouble breathing, or chest pain after you get the injection.

You will be exposed to radiation when you receive this medicine. Discuss any concerns with your doctor.

Make sure any doctor or dentist who treats you knows that you are using this medicine. This medicine may affect the results of certain medical tests.

In deciding to use a medicine, you and your doctor need to weigh the risks against the benefits. For this medicine, consider the following:

Allergies

Inform your doctor if you have ever had any unusual or allergic reactions to this medicine or any other medicines. Also, let your healthcare professional know about any other allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Pediatric

Studies have not been done to understand how technetium Tc 99m tetrofosmin injection affects children. Its safety and effectiveness have not been established for this age group.

Geriatric

Current studies have not found any specific problems in elderly patients that would limit the use of technetium Tc 99m tetrofosmin injection.

Breast Feeding

Research in breastfeeding women has shown harmful effects on infants. You should either use a different medication or stop breastfeeding while using this medicine.

Interactions with Medicines

Some medicines should not be used together at all, while in other cases, two different medicines can be used together even if an interaction might happen. In such cases, your doctor may adjust the dose or take other precautions. Inform your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicines.

Interactions with Food/Tobacco/Alcohol

Certain medicines should not be taken around mealtime or with specific types of food due to possible interactions. Using alcohol or tobacco with some medicines may also lead to interactions. Talk with your healthcare professional about using your medicine with food, alcohol, or tobacco.

Other Medical Problems

Other medical issues may affect how this medicine works. Make sure to tell your doctor if you have any other medical conditions, especially:

• Breathing problems (e.g., bronchoconstriction) or
• Hypotension (low blood pressure) or
• History of stroke—Use with caution. May worsen these conditions.

Along with its necessary effects, a medicine may cause some unwanted effects. Not all side effects may occur, but if they do, they might need medical attention.

Check with your doctor or nurse right away if any of the following side effects happen:

More common

• Arm, back, or jaw pain
• Chest pain or discomfort
• Chest tightness or heaviness
• Fast or irregular heartbeat
• Nausea
• Sweating
• Trouble breathing

Less common

• Blurred vision
• Confusion
• Dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
• Fast, irregular, pounding, or racing heartbeat or pulse
• Unusual tiredness or weakness

Incidence not known

• Cough
• Difficulty with swallowing
• Hives, itching, or skin rash
• Puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body gets used to the medicine. Your health care professional may also be able to tell you how to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue, are bothersome, or if you have any questions about them:

More common

• Abdominal or stomach pain
• Change in the sense of smell or taste
• Feeling of warmth
• Redness of the face, neck, arms, and sometimes, upper chest

Other side effects not listed may also happen 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.

In the U.S.

• Myoview

Available Dosage Forms:

• Kit

Therapeutic Class: Diagnostic Agent, Radiopharmaceutical Imaging

A doctor or other health professional will give you this medicine. This medicine is given through a needle placed in a vein.

You will need to urinate right away and as often as possible after receiving this medicine. Drink plenty of fluids before and after receiving this medicine so you will pass more urine.