Methotrexate (Oral)


Uses


What is Methotrexate (Oral) for?

Oral methotrexate is a low-dose chemotherapy medicine, normally used in combination with oral cyclophosphamide for the treatment of advanced breast or advanced ovarian cancer.

How should I take or use Methotrexate (Oral)?

It is a tablet taken by mouth. Drink plenty of fluids while taking this medicine. Take the exact number of tablets and follow the dosing schedule as instructed by your doctor.

What should I do if I forget to take or use Methotrexate (Oral)?

If you miss a dose, take it as soon as you remember. However, if it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose.


Precaution


What precautions should I take when taking or using Methotrexate (Oral)?

  • Inform your doctor or pharmacist if you intend to start any new medicines or supplements.
  • Contraceptive (birth control) measures are recommended for both men and women during treatment with Methotrexate. Inform your doctor if you suspect you are or intend to get pregnant.
  • Do not breastfeed. Inform your doctor if you have any intentions to while on Methotrexate.

Side Effects


What are some common side effects of Methotrexate (Oral)?

Oral low-dose methotrexate generally has fewer side effects than intravenous methotrexate.

  • Decrease in the white blood cells, red blood cells and platelets
    This may increase your risk of infection, bleeding or bruising and feeling tired. To reduce your risk of infection, avoid crowded areas and people who have flu, and always wash your hand after using the toilet and before handling food.
  • Headache and drowsiness may sometimes occur
  • Nausea and vomiting
  • Itch, redness and dryness of the skin
  • Tiredness and lack of energy may occur
    If tiredness is a problem, do not drive a car or operate machinery. Avoid alcohol as it may make you feel more tired and drowsy.

Inform your doctor if any of the following occurs

  • Fever of 38°C or higher
  • Severe mouth ulcers or sores in the mouth and throat
  • Unusual bruising or bleeding, or black tarry stools
  • Sudden onset of persistent, non-productive cough and shortness of breath
  • Yellowing of the eyes or skin, tea-coloured urine
  • Severe headache, confusion, blurred vision or slurred speech
  • Allergic reactions e.g. rashes, itch, swelling of eyelids and face


Handling


How should I store Methotrexate (Oral)?

  • Keep away from children
  • Keep in a cool, dry place, away from direct sunlight
  • Store at room temperature

How should I handle Methotrexate (Oral) safely?

Do not crush or break the tablet.


For more information


What should I do if I overdose?

If you overdose on this medicine, inform your doctor immediately.

Disclaimers

Please take note that the above is not a complete list of all possible side effects. If you have any concerns about your medication or if you have other side effects that you think are caused by this medication, please consult your doctor or pharmacist.

If you take more than the recommended dose, please seek medical advice immediately. The information provided on this page does not replace information from your healthcare professional. Please consult your healthcare professional for more information.

This article is jointly developed by members of the National Medication Information workgroup. The workgroup consists of cluster partners (National Healthcare Group, National University Health System, and SingHealth), community pharmacies (Guardian, Unity, and Watsons), and the Pharmaceutical Society of Singapore. The content does not reflect drug availability and supply information in pharmacies and healthcare institutions. You are advised to check with the respective institutions for such information.

Last Updated on October 2017



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