Common brand names

• Decadron

How it is administered

Dexamethasone is available in several forms for administration:

• Oral tablets: Common strengths include 0.5 mg, 0.75 mg, 1 mg, 1.5 mg, 2 mg, 4 mg, and 6 mg.
• Oral solution: Available in concentrations such as 0.5 mg per 5 mL and 1 mg per mL (concentrated solution).
• Injectable form: Dexamethasone sodium phosphate can be given intramuscularly or intravenously, especially in acute settings.
• Ophthalmic (eye) drops: For certain eye conditions, dexamethasone is available as a 0.1% suspension.
• Intravitreal implant: Used for certain eye diseases, not for blood cancers.

The form and dose depend on the condition being treated and your doctor's recommendations.

How it works

Dexamethasone is a synthetic corticosteroid, which means it mimics the effects of hormones naturally produced by your adrenal glands. It works by reducing inflammation and suppressing the immune system's activity. In blood cancers like Waldenström's Macroglobulinemia, dexamethasone is often used as part of combination therapy to help control symptoms, reduce inflammation, and manage complications such as low blood counts or immune reactions.

Dexamethasone helps decrease the body's immune response, which can be beneficial in blood cancers by reducing the activity of abnormal immune cells and inflammation. It also helps manage side effects of cancer or its treatments, such as swelling, allergic reactions, or nausea. Its anti-inflammatory and immunosuppressive effects make it a valuable supportive medication in cancer care.

Who should take it

Dexamethasone is indicated for many conditions, including blood cancers like leukemias and lymphomas, and is commonly used in the supportive care of patients with Waldenström's Macroglobulinemia. It may be prescribed to help control symptoms, reduce inflammation, manage allergic reactions, or as part of chemotherapy regimens.

Patients who have complications from their cancer, such as low blood counts, swelling, or immune-related symptoms, may benefit from dexamethasone. Your doctor will determine if dexamethasone is appropriate for your specific situation based on your diagnosis and overall health.

Who should not take it

Dexamethasone should not be used in patients with systemic fungal infections or those who are allergic to any of its components. It should also be avoided in patients with certain untreated infections, such as active tuberculosis, unless it is being used to manage a reaction to treatment.

Caution is needed in people with a history of severe infections, certain eye diseases (like herpes simplex of the eye), or those who have recently received live vaccines. Always inform your doctor about your full medical history before starting dexamethasone.

Commonly used with

Dexamethasone is often used in combination with other medications for blood cancers, such as:

• Chemotherapy agents (e.g., cyclophosphamide, bendamustine)
• Monoclonal antibodies (e.g., rituximab)
• Proteasome inhibitors (e.g., bortezomib)
• Immunomodulatory drugs (e.g., thalidomide, lenalidomide)

It may also be used with medications to prevent or treat side effects, such as anti-nausea drugs or antibiotics.

Commonly tested with

In clinical trials and treatment regimens for blood cancers, dexamethasone is commonly tested in combination with:

• Chemotherapy drugs
• Targeted therapies (such as proteasome inhibitors or monoclonal antibodies)
• Other corticosteroids for comparison

These combinations are designed to improve treatment outcomes and manage symptoms or side effects.