Tecfidera is a prescription medication that is used to treat relapsing forms of multiple sclerosis (MS). Tecfidera contains dimethyl fumarate and works by decreasing inflammation and preventing nerve damage. Tecfidera is not a cure for MS but may help to decrease the worsening of MS symptoms.

Make sure to always read the patient information and instructions before using this medication. Always follow your doctor’s directions.

• Tecfidera can be taken with or without food, although taking it with food can help prevent flushing.
• Swallow this medication whole without chewing or crushing.
• You may need frequent blood tests while taking this medication.

Tell your doctor and pharmacist:

• About your drug and other allergies.
• If you take any other prescription or over-the-counter medications.
• Your medical history particularly of low white blood cell (WBC) counts or an active infection.
• If you are pregnant or planning pregnancy.
• If you are breast-feeding.

You should also know:

• Tecfidera should not be taken by anyone younger than 18.

Common side effects of Tecfidera include but are not limited to:

• Nausea or vomiting.
• Stomach pain.
• Indigestion.
• Diarrhea.
• Rashes, itching, or redness.
• Signs of flushing including sudden redness, warmth, or a tingly feeling.

Get medical help if you have any of the following side effects of dimethyl fumarate:

• Signs of a low white blood cell count including fever, sore throat, breathing troubles, mouth sores, skin sores, or a cough.
• Signs of a liver problem including dark urine, clay-colored stools, loss of appetite, jaundice, tiredness, itching, or pain in the upper right side of the stomach.
• Signs of shingles including flu symptoms or a tingly or painful rash on one side of the body that blisters.
• Signs of a brain infection including speech problems, thought problems, vision problems, or problems with muscle movement. These symptoms may start slowly and then quickly worsen.
• Symptoms of an allergic reaction such as difficulty breathing, hives, or swelling in your face, lips, or throat.

What should I do if I miss a dose of Tecfidera?

If you miss a dose of Tecfidera, you should take it as soon as you remember. However, if it is almost time for your next dose, then skip your missed dose.

What is the strength of Tecfidera?

Tecfidera is available in a strength of 120mg or 240mg.