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Interferon alfa-2b (injection route)

Available brands

Intron A

About this medication

Interferon alfa-2b injection is used to treat hepatitis B and C, lymphoma (lymph node cancer), malignant melanoma (skin cancer), genital warts, hairy cell leukemia (blood cell cancer), and Kaposi sarcoma (AIDS-related tumor). Interferons are substances produced by cells in the body to help fight infections and tumors. Interferon alfa-2b is a synthetic (man-made) version of these substances. This medicine is available only with your doctor's prescription.

Before using this medication

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: 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. Appropriate studies performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of interferon alfa-2b injection in children 1 to 17 years of age with hepatitis B or children 3 to 16 years of age with hepatitis C. Appropriate studies have not been performed on the relationship of age to the effects of interferon alfa-2b injection in children with lymphoma, malignant melanoma, genital warts, hairy cell leukemia, and Kaposi sarcoma. Safety and efficacy have not been established. Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of interferon alfa-2b injection in the elderly. However, elderly patients are more likely to have age-related liver, kidney, bone marrow, or heart problems, which may require caution and an adjustment in the dose for patients receiving interferon alfa-2b injection. 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. 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. When you are receiving this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive. Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take. Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines. Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines. 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. 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:

How to use this medication

A nurse or other trained health professional will give you this medicine. You may also be taught how to give your medicine at home. This medicine is given as a shot under your skin, into a muscle or vein, or directly into a skin lesion. If you are injecting interferon alfa-2b yourself,use it exactly as directed by your doctor. Do not use more or less of it, and do not use it more often than your doctor ordered. The exact amount of medicine you need has been carefully worked out. Using too much will increase the risk of side effects, while using too little may not improve your condition. You will be shown the body areas where this shot can be given. Use a different body area each time you give yourself a shot. Keep track of where you give each shot to make sure you rotate body areas. Use only the brand of this medicine that your doctor prescribed. Different brands may not work the same way. This medicine comes in a vial (glass container) or prefilled syringe. You might not use all of the medicine in each vial or syringe. Use them only one time and do not save an open vial or syringe. If the medicine has changed color or has particles in it, do not use it. The solution in the vial or prefilled syringe should be allowed to warm to room temperature before injecting it. Use a new needle and syringe each time you inject your medicine. Drink extra fluids so you will pass more urine while you are using this medicine. This will keep your kidneys working well and help prevent kidney problems. This medicine comes with a Medication Guide. Read this information carefully and make sure you understand: If you have any questions about any of this information, talk with your doctor. This medicine needs to be given on a fixed schedule. If you miss a dose or forget to use your medicine, call your doctor or pharmacist for instructions. Store in the refrigerator. Do not freeze. Keep out of the reach of children. Do not keep outdated medicine or medicine no longer needed. Ask your healthcare professional how you should dispose of any medicine you do not use. Throw away used needles in a hard, closed container that the needles cannot poke through. Keep this container away from children and pets.

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