Methotrexate

Brand names: Rheumatrex, Trexall

Why is Methotrexate prescribed?

Methotrexate is an anticancer drug used in the treatment of lymphoma (cancer of the lymph nodes) and certain forms of leukemia. It is also given to treat some forms of cancers of the uterus, breast, lung, head, neck, and ovary. Methotrexate is also given to treat rheumatoid arthritis when other treatments have proved ineffective, and is sometimes used to treat very severe and disabling psoriasis (a skin disease characterized by thickened patches of red, inflamed skin often covered by silver scales).

Most important fact about Methotrexate

Be certain to remember that in the treatment of psoriasis and rheumatoid arthritis, methotrexate is taken once a week , not once a day. Accidentally taking the recommended weekly dosage on a daily basis can lead to fatal overdosage. Be sure to read the patient instructions that come with the package.

How should you take Methotrexate?

Take methotrexate exactly as prescribed, and promptly report to your doctor any new symptoms that may develop.

Methotrexate is given at a higher dosage for cancer than for psoriasis or rheumatoid arthritis. After high-dose methotrexate treatment, a drug called leucovorin may be given to limit the toxic effects.

• If you miss a dose...
  Skip it and go back to your regular schedule. Do not take 2 doses at once.

• Storage instructions...
  Store at room temperature, away from light.

What side effects may occur?

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine whether it is safe for you to continue taking methotrexate.

• Side effects may include:
  Abdominal pain and upset, chills and fever, decreased resistance to infection, dizziness, fatigue, general feeling of illness, mouth ulcers, nausea

If you are taking methotrexate for psoriasis, you may also experience hair loss and/or sun sensitivity, and your patches of psoriasis may give a burning sensation.