Common brand names

• Adriamycin
• Doxil

How it is administered

Doxorubicin is given as an intravenous (IV) infusion, meaning it is injected directly into a vein. It is available as a sterile solution or powder that is reconstituted for injection. The medication is administered by a healthcare professional in a clinic or hospital setting.

There are two main forms:

• Standard doxorubicin (Adriamycin): Given as a short IV infusion, usually over 3 to 10 minutes, or as a continuous infusion through a central line.
• Liposomal doxorubicin (Doxil): This is encapsulated in liposomes and given as a slower IV infusion, typically over 60 minutes, to reduce certain side effects.

How it works

Doxorubicin is a type of chemotherapy known as an anthracycline topoisomerase inhibitor. It works by interfering with the DNA inside cancer cells. Specifically, doxorubicin binds to DNA and blocks the action of an enzyme called topoisomerase II. This enzyme is essential for DNA replication and repair. By blocking it, doxorubicin prevents cancer cells from dividing and growing, ultimately leading to their death.

The medication also generates free radicals, which can damage cell membranes and other cellular components. While these actions make doxorubicin effective against many types of cancer, they can also affect healthy cells, which is why side effects can occur.

Who should take it

Doxorubicin is used to treat several types of blood cancers, including Hodgkin lymphoma and non-Hodgkin lymphoma, which includes some forms of Peripheral T-Cell Lymphoma (PTCL). It is often used as part of combination chemotherapy regimens, especially for aggressive lymphomas.

Your doctor may recommend doxorubicin if you have a type of lymphoma that is likely to respond to this medication, or if other treatments have not worked. It is also used in other cancers such as leukemia, breast cancer, and sarcomas.

Who should not take it

You should not receive doxorubicin if you:

• Have severe heart problems or have recently had a heart attack
• Have severe, ongoing suppression of bone marrow function (myelosuppression)
• Have severe liver impairment (for example, high bilirubin levels)
• Have had a severe allergic reaction to doxorubicin or similar medications

It is important to tell your doctor about your full medical history, including any heart or liver issues, before starting treatment. Doxorubicin can cause harm to unborn babies, so it should not be used during pregnancy unless absolutely necessary.

Commonly used with

Doxorubicin is commonly used in combination with other chemotherapy drugs for blood cancers. For lymphomas, it is often part of regimens such as CHOP (cyclophosphamide, doxorubicin, vincristine, and prednisone). In multiple myeloma, liposomal doxorubicin (Doxil) may be combined with bortezomib.

Your treatment plan may include other supportive medications to help manage side effects, such as anti-nausea drugs or growth factors to support blood counts.

Commonly tested with

Doxorubicin has been tested in combination with many other chemotherapy agents, especially in regimens for lymphomas and leukemias. Common combinations include cyclophosphamide, vincristine, prednisone, and sometimes etoposide or rituximab (for B-cell lymphomas).

In multiple myeloma, Doxil is tested with bortezomib. Clinical trials may also test doxorubicin with newer targeted therapies or immunotherapies to improve outcomes.