TECFIDERA Side Effects
Treatment for relapsing multiple sclerosis (MS) means staying on therapy for as long as you and your doctor decide it's right for you. Many people are rightfully concerned about the side effects of any given treatment. The safety of TECFIDERA has been documented in clinical studies for up to 4 years. It's important to know about these side effects before starting TECFIDERA.
Safety information to consider before starting treatment
It's important to talk to your doctor if you've had an allergic reaction to TECFIDERA or any of its ingredients. You should also discuss the serious side effects associated with TECFIDERA, including:
- Allergic reactions (such as welts, hives, swelling of the face, lips, mouth, or tongue, or difficulty breathing)
- PML, a rare brain infection that usually leads to death or severe disability
- Decreases in your white blood cell count
Your doctor should do a blood test before you start treatment with TECFIDERA and while on therapy.
Common side effects of TECFIDERA
In clinical studies, the most common side effects of TECFIDERA were:
They tended to happen earlier in treatment and usually decreased over time.
Try taking TECFIDERA with food, such as breakfast or dinner, which may help with flushing. Ask your doctor if taking aspirin may also help with flushing.
You could have other side effects, so if you have any that bother you or don't go away, be sure to talk to your doctor.
You should always talk to your doctor before taking TECFIDERA if you're pregnant, interested in becoming pregnant, breastfeeding or plan to breastfeed. That's because it isn't known how taking TECFIDERA would affect an unborn baby or if it passes into your breast milk. If you're pregnant while taking TECFIDERA, talk to your doctor about enrolling in the TECFIDERA Pregnancy Registry to monitor your health and the health of your baby.
TECFIDERA Pregnancy Registry: