阅读理解 TECFIDERA What is TECFIDERA ? ·TECFIDERA is a prescription ( 处方 ) medicine used to treat people with multiple sclerosis , a serious illness that gradually destroys your nerves , making you weak and unable to walk. ·It is not known if TECFIDERA is safe and effective in children under 18 years of age. Before taking and while you take TECFIDERA , tell your doctor if you have or have had low white blood cell counts or any other medical conditions. Tell your doctor if you are : ·pregnant or plan to become pregnant.It is not known if TECFIDERA will harm your unborn baby. If you become pregnant while taking TECFIDERA , talk to your doctor about joining in the TECFIDERA Pregnancy Registry.You can join in this registry by calling 1-800-456-2255.The purpose of this registry is to monitor the health of you and your baby. ·breastfeeding ( 母乳喂养 ) or plan to breastfeed.It is not known if TECFIDERA passes into your breast milk.You and your doctor should decide if you will take TECFIDERA or breastfeed. How should I take TECFIDERA ? ·Take TECFIDERA exactly as your doctor tells you to take it. ·The recommended starting dose ( 剂量 ) is one 120 mg capsule taken by mouth 2 times a day for 7 days. ·The recommended dose after 7 days is one 240 mg capsule taken by mouth 2 times a day. ·TECFIDERA can be taken with or without food. ·Swallow TECFIDERA whole.Do not press , chew , or put capsule contents in food. ·Protect TECFIDERA from light.You can do this by storing the capsules in their original container.Throw away opened TECFIDERA after 90 days. What are the possible side effects ( 副作用 ) of TECFIDERA ? TECFIDERA may cause serious side effects including decreases in your white blood cell count , sickness , redness , stomach pain and so on.Redness and stomach problems are the most common reactions , especially at the start of the treatment , but they should decrease over time. Call your doctor if you have any of these symptoms and they bother you or do not go away.These are not all the possible side effects of TECFIDERA.Call your doctor for medical advice about side effects.You may report side effects to the US Food and Drug Administration (FDA) at 1-800-FDA-1088.